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Iranian architecture

Iranian architecture represents one of the world's oldest and most continuous building traditions, originating at least 5,000 years ago and characterized by innovative structural techniques, harmonious integration with the environment, and intricate ornamental details such as geometric patterns, domes, iwans, and tilework. This tradition spans pre-Islamic empires, Islamic dynasties, and modern developments, influencing and being influenced by diverse cultures across the and , with iconic examples including grand palaces, mosques, and fortified citadels that emphasize symmetry, light, and natural ventilation systems like windcatchers. The foundations of Iranian architecture were laid in the pre-Islamic era, beginning with early settlements around the 7th millennium BCE using mud bricks for defensive walls, evolving through the (c. 550–330 BCE) with monumental complexes like , featuring tall columns, expansive halls, and precise stone masonry to symbolize imperial power. The Parthian period (c. 247 BCE–224 CE) introduced vaulted iwans and arched gateways, while the Sassanid Empire (224–651 CE) achieved peaks in engineering with massive barrel vaults, domes, and fire temples, as seen in the Taq Kisra (Arch of Khosrau) at , spanning over 80 feet and reaching 118 feet in height, demonstrating advanced use of brick and mortar for seismic-resistant structures. Following the Islamic conquest in the , Iranian architecture adapted elements to new religious and cultural contexts, developing the distinctive four-iwan plan under the Seljuqs (1037–1194 ), where a central is flanked by vaulted halls and a large dome chamber, exemplified by the Great Mosque of (additions 1073–1092 ) with its polychrome brickwork and vaulting. Subsequent dynasties like the Ilkhanids (1256–1353 ) incorporated East Asian motifs in palaces such as Takht-i Sulayman, while the Safavids (1501–1736 ) under Shah Abbas I (r. 1588–1629) transformed into a urban masterpiece with the , the Shah Mosque (1611–1638 ) featuring a double-shelled dome and turquoise tiles, and the Sheikh Lotfollah Mosque (1603–1619 ), emphasizing optical illusions and intricate arabesques. These periods also saw the proliferation of madrasas, caravanserais, and qanats (underground aqueducts) that integrated architecture with landscape and hydrology. In the modern era, particularly from the late onward, Iranian architecture blended European influences—such as Beaux-Arts introduced through training in —with indigenous revivalism under the (1925–1979), as seen in ’s government buildings that evoked Achaemenid grandeur to foster national identity. Post-1979 Islamic Revolution, the field evolved toward contemporary modernism while preserving traditional elements like courtyards and sustainable designs, with UNESCO-recognized sites such as the Historic City of (inscribed 2017) showcasing earthen qanats, windcatchers, and structures adapted for arid climates. Today, Iranian architects continue to innovate, addressing urban growth and in a global context.

General Characteristics

Fundamental Principles

Iranian architecture is fundamentally shaped by philosophical and cultural principles that emphasize harmony with the natural and cosmic order, drawing from Zoroastrian and Islamic traditions to create spaces that evoke spiritual transcendence and balance. Zoroastrianism, the pre-Islamic religion of Persia, influenced architectural symmetry and proportion as reflections of divine order and the universe's dualistic harmony between light and darkness, good and evil. These principles persisted into Islamic architecture, where symmetry symbolizes unity (tawhid) and proportion adheres to geometric ideals that mirror the infinite perfection of creation. A prime example is the four-iwan layout, a cruciform plan with four vaulted halls opening onto a central courtyard, representing the four cardinal directions, the four elements, and the paradisiacal garden of Islamic cosmology, thereby linking earthly structures to heavenly ideals. Central to these principles is the concept of pairidaeza, an enclosed garden originating in Achaemenid Persia, which embodies a cosmological ideal of paradise as a walled harmonizing human intervention with nature's elements. Derived from pairi-daēza meaning "around-enclosure," it symbolizes the Zoroastrian vision of a protected , divided into four quadrants by water channels to represent the four and the elemental forces of water, earth, sky, and fire. This layout not only facilitates in arid landscapes but also serves as a microcosm of the universe, promoting spiritual renewal through controlled natural beauty and that guides the viewer toward contemplative centers. Manipulation of light and shadow further enhances the spiritual dimension, creating dynamic contrasts that evoke divine presence and introspection in architectural spaces. In Islamic structures, light filtered through intricate lattice screens or stained glass produces ethereal effects, symbolizing the illumination of faith and the soul's journey toward enlightenment. Qibla orientation, directing prayer halls toward , integrates this principle by aligning buildings with solar paths and cosmic axes, ensuring that natural light accentuates the sacred direction during rituals and reinforces hierarchical spatial flow. Zoroastrian precedents, such as fire temples with controlled light to honor the sacred , underscore this continuity, where shadow play heightens mystery and proportion governs the interplay for psychological and devotional impact. Geometric patterning forms another cornerstone, rooted in Islamic —which prohibits figural representations in sacred contexts—and enriched by pre-Islamic s, fostering abstract expressions of infinity and order. These patterns, constructed from interlocking polygons, stars, and , avoid idolatry while conveying mathematical precision and spiritual depth, often covering surfaces to create rhythmic, hypnotic visuals that transcend the material. Pre-Islamic influences include Zoroastrian symbols like the , a winged disk from Achaemenid reliefs at , which integrates geometric elements such as concentric circles and symmetrical wings to represent the soul's guardian spirit () and divine glory (farr). Though less common in Islamic eras due to aniconic norms, echoes of the 's radial symmetry appear in abstracted forms, bridging ancient cosmological symbolism with later geometric abstraction.

Materials and Techniques

Iranian architecture has historically relied on sun-dried and baked bricks as primary building materials, owing to the abundance of clay in the region's alluvial plains and the relative scarcity of suitable stone, which facilitated construction in arid environments where was crucial. Sun-dried bricks, molded from a mixture of clay, water, sand, and organic binders like , were dried naturally to form lightweight, porous blocks that absorbed daytime heat and released it slowly at night, promoting natural climate control. Baked bricks, produced by firing sun-dried bricks in at high temperatures, provided enhanced compressive strength and resistance to weathering, making them ideal for load-bearing walls, columns, and in areas prone to seismic activity or . These bricks were typically laid in precise patterns, such as the interlocking hasht-behesht or simple running bonds, to ensure stability without excessive use. To address waterproofing challenges in regions with variable rainfall and high groundwater levels, saruj mortar—a hydraulic lime-based mixture incorporating pozzolanic additives like volcanic ash, clay, and animal hair—was widely applied as a binding and sealing agent. This mortar achieved its water-resistant properties through a chemical reaction that formed calcium silicate hydrates, allowing it to set even in damp conditions and create impermeable barriers against moisture penetration, thereby protecting brick structures from dissolution and structural weakening. Saruj was mixed in varied ratios, typically one part lime to 20 parts of a pozzolanic mixture such as clay and ash, and applied in layers up to several centimeters thick, often reinforced with embedded reeds for added tensile strength. Its use exemplifies an early form of sustainable engineering, utilizing locally sourced materials to extend the lifespan of buildings in harsh climates. With the advent of the Islamic era, glazed tiles known as were introduced, revolutionizing surface treatments by combining functional durability with visual appeal, as they shielded underlying masonry from direct exposure to sun, rain, and salt efflorescence. Kashi involved coating baked clay tiles with a vitreous fired at around 900–1000°C, creating a non-porous sheen that repelled water and reduced maintenance needs in open-air settings. Specific techniques included , where a manganese-based greasy filament was applied between color slips to prevent bleeding during firing, enabling sharp outlines in multi-hue designs; and haft-rangi, a polychrome overglaze method that layered up to seven enamel colors on a single tile, fired at lower temperatures (around 700°C) for metallic luster and opacity. These innovations not only preserved structural integrity but also allowed for scalable production using local kilns. Wood played a key role in early roofing systems, where durable species like or were sawn into beams and joists to support flat or barrel-vaulted roofs, often overlaid with mats, clay, and a final layer of or tiles for weatherproofing. This timber framework offered flexibility to absorb earthquakes, a common hazard, while plaster—calcined from readily available sulfate-rich deposits—was smoothed over interior walls and ceilings to form a breathable, fire-resistant finish that regulated . systems, ancient subterranean aqueducts channeling via gravity-fed tunnels, supported water-resistant by providing a steady supply for preparation and , preventing desiccation cracks in earthen bases during and . Arch construction techniques progressed from corbelled forms in pre-Islamic phases, relying on stepped brick or stone projections to approximate curved spans without true keystone support, to sophisticated true arches employing precisely cut voussoirs that transferred loads radially for greater efficiency and span capacity. This evolution enabled the integration of squinch and pendentive transitions, enhancing overall structural harmony while adapting to seismic forces through flexible joints. Materials in these techniques were selected to align with environmental harmony, underscoring a broader philosophical emphasis on balance with nature. In applications like domes, baked bricks and saruj ensured curved surfaces withstood expansive pressures.

Core Design Elements

Iranian architecture is characterized by innovative structural elements that evolved from pre-Islamic traditions, particularly in the Parthian and Sasanian periods, to create expansive and functional spaces. The , introduced during the Parthian era (circa 250 BCE–224 CE) and reaching monumental scale in Sasanian constructions, allowed for large enclosed interiors without the need for extensive internal supports. A prime example is the Taq at , where a barrel vault spans over 80 feet and rises to 118 feet, demonstrating the technique's capacity to roof vast halls while distributing structural loads effectively. This pre-Islamic foundation influenced subsequent Islamic developments, where barrel vaults were refined to support iwans and prayer halls, enabling mosques to accommodate large congregations in arid climates. The emerged as a key evolution from these earlier forms, appearing in early Islamic structures around the , such as the Tari Khana in ( 760 ), and became integral to vaulting systems by the . Derived from Sasanian elliptic arches, the pointed profile directed thrusts more vertically, facilitating taller and wider spans in barrel and ogival vaults, as seen in the dome chamber at Isfahan's Jameh ( ), with an interior span of 16 meters and height of 26.55 meters. This adaptation not only enhanced structural stability but also aesthetic harmony, allowing for intricate and larger enclosed spaces central to religious and palatial architecture. Central to these designs is the , a vaulted rectangular hall enclosed on three sides and open on one, originating in Parthian palaces as a grand entrance or audience space. In , iwans achieved massive proportions, as in the palaces at Firuzabad and , where they served functional roles in processional and ceremonial contexts. Adopted into Islamic design from the , the iwan became a defining feature, particularly in the four-iwan plan surrounding a , symbolizing and openness; the Masjid-e Jameh of Zavareh (1135 ) exemplifies this early application, integrating iwans with barrel vaults for shaded, monumental portals. Courtyard-centric layouts, known as sahn in mosques and analogous to central courts in palaces, emphasize communal gathering and environmental adaptation. In mosques, the sahn provides an open rectangular space surrounded by arcades and iwans, fostering collective prayer and social interaction while mitigating Iran's hot, dry climate through shade, natural ventilation, and evaporative cooling via water features. Palaces like those at 's Chehel Sotun (17th century, but rooted in earlier traditions) extended this model for royal audiences, promoting privacy gradients and airflow; the sahn's design thus balances social cohesion with , as evidenced in structures like the Masjid-e Jameh of . Muqarnas, or honeycomb vaulting, serves as a sophisticated transitional element, bridging planar walls or square bases to curved domes or arches through tiered, stalactite-like cells. Emerging in northeastern or around the under Seljuk influence, muqarnas evolved from earlier systems, providing both structural support—by distributing loads gradually—and decorative depth, as in the intricate pendentives of the Friday Mosque at (12th century). In Iranian architecture, it often adorns iwans and portals, creating a visual cascade from square to circular forms, enhancing the illusion of floating domes while concealing junctions.

Urban Planning and Gardens

Iranian urban planning has historically emphasized organized layouts that integrate economic, social, and environmental functions, often featuring a central axis or grid system to facilitate movement and resource distribution. In ancient models such as , an Achaemenid capital founded by around 550 BCE, the settlement incorporated an orthogonal grid in its northern , consisting of monocellular dwellings possibly serving as a , surrounded by irrigated rectangular gardens and official buildings in a looser arrangement. This grid-based approach influenced later pre-modern cities, where settlements expanded around a central (bāzār) as the economic and social core, with surrounding mahallas—self-contained residential quarters organized by kinship, profession, or ethnicity—forming semi-autonomous neighborhoods connected by narrow alleys. The bazaar itself functioned as a linear, covered complex of shops, passageways, and squares, serving not only commerce but also as a hub for religious and communal activities, as seen in the preserved structures of cities like . A key element shaping Iranian urban patterns was the system, an ancient network of underground aqueducts developed around the 1st millennium BCE to transport water from aquifers in mountainous regions to arid lowlands via gravity-fed tunnels. These sustainable channels, often extending several kilometers with vertical shafts for maintenance, determined settlement locations by providing reliable and , enabling the growth of compact urban clusters in otherwise inhospitable environments and influencing the radial or linear expansion of cities around water outlets. In pre-modern contexts, qanats integrated with surface canals to support bazaars and mahallas, minimizing evaporation and fostering agricultural peripheries that sustained urban populations. Gardens formed an integral extension of , embodying principles of harmony and paradise-like seclusion within the . The layout, a quadrilateral garden divided into four equal parts by intersecting waterways symbolizing the four , was prominently incorporated into urban palaces and tombs from the Achaemenid period onward, as evidenced in Pasargadae's irrigated enclosures around monumental structures. This design not only provided aesthetic and climatic relief through shaded, watered quadrants but also structured larger urban axes, such as avenues lined with trees and pavilions, enhancing the flow between public spaces and elite residences. Defensive considerations further defined pre-modern Iranian urban forms, with cities often enclosed by robust walls, gates, and moats to protect against invasions, as illustrated in pre-Safavid where a and partial town walls were constructed in the southwest quadrant during medieval expansions. These fortifications complemented internal planning by channeling access through controlled points near the , while innovative layouts like radial avenues in radiated from central nodes to improve circulation and surveillance, blending security with aesthetic symmetry in the overall city fabric.

Stylistic Classifications

Iranian architecture is broadly classified into pre-Islamic and Islamic periods, reflecting shifts in cultural, religious, and political influences that shaped its stylistic evolution. Pre-Islamic styles can be divided into Mesopotamian-influenced variants, characterized by ziggurat-like stepped structures and mud-brick construction seen in early Elamite and interactions, and approaches, which emphasized columnar halls and rock-cut as exemplified in Achaemenid palaces. Islamic classifications further branch into Iranian styles, rooted in continuity from Sasanian traditions with features like iwans and domes, and Turko-Mongol influences, which introduced more geometric patterns and turquoise tiling under dynasties like the Timurids. These branches highlight a transition from imperial monumentality to more diverse, synthesis-driven forms after the Arab conquest. Regional styles provide another key framework for classification, adapting core Persian elements to local geographies and materials. The Khorasani style, prevalent in eastern Iran and Central Asia, is known for its austere, functional aesthetic with plain brickwork and minimal ornamentation, as seen in early Samanid mausolea like the Tomb of Ismail Samani in . In contrast, the Razi style from central features ornate detailing, including intricate vaulting and turquoise domes, evident in structures like the . The Azari style in northwestern incorporates Caucasian influences, such as steeper roofs and basalt stonework, as demonstrated in the Friday Mosque of with its tall minarets and geometric tilework. These regional variations underscore how climate, trade routes, and ethnic migrations fostered stylistic diversity within a unified idiom. Functional categories further delineate Iranian architecture, emphasizing purpose-driven designs that integrate symbolism and utility. Religious architecture encompasses mosques with halls and mihrabs in the Islamic era, alongside pre-Islamic fire temples featuring square plans and eternal flames, such as those at Naqsh-e Rustam. Civic structures include bazaars with vaulted passages and wind-catching qanats for ventilation, like the Grand Bazaar of Tabriz, and bridges such as the in , which blend engineering with aesthetic arches. Funerary architecture manifests in and mausolea, from Achaemenid rock tombs to octagonal Seljuk shrines like the Gonbad-e Qabus, often crowned with conical roofs symbolizing ascent to the divine. These categories illustrate architecture's role in communal and spiritual life across eras. Post-10th century developments mark an evolution from monumental, fortress-like forms to intricate, decorative styles, influenced by the Seljuk consolidation of Persianate culture. This shift incorporated arabesque motifs and glazed tiles, evolving into hybridizations under foreign dynasties like the and Safavids, who blended Central Asian elements with indigenous techniques, as in the fusion of Timurid portals with Razi domes. Such adaptations ensured , allowing Iranian architecture to absorb and refine external influences while preserving its geometric and core.

Pre-Islamic Architecture

Pre-Achaemenid Developments

The architectural traditions of the prior to the (c. 550–330 BCE) were shaped by indigenous developments and regional interactions, particularly in the Elamite and periods. Elamite architecture, flourishing in southwestern from the late third millennium BCE, emphasized monumental religious structures that symbolized divine connection and cosmic order. The most prominent example is the ziggurat at , constructed around 1250 BCE by the Elamite king Untash-Napirisha (also known as Untash-Gal) as part of a sacred complex dedicated to the gods and Napirisha. This ziggurat features a terraced, pyramidal form with a square base measuring approximately 105 meters on each side at the foundation, rising through three completed levels (originally planned for five) to a height of about 25 meters, constructed primarily from a in baked bricks for durability and aesthetic appeal. The baked brick facing, laid in alternating courses, includes inscribed dedications in Elamite and languages naming the deities, underscoring the structure's role as a symbolic linking earth and heaven in Elamite cosmology. Surrounding the ziggurat were temples, chapels, and royal residences within a walled , reflecting a holistic religious-urban planning that integrated worship with administrative functions. Mud-brick, tempered with straw for stability, formed the of these stepped platforms, enabling the construction of massive, elevated forms despite limited stone resources. In the period (c. 678–549 BCE), architecture shifted toward fortified settlements and proto-palatial complexes in northwestern and central , incorporating defensive hilltop locations and early columnar halls that hinted at emerging imperial designs. Sites such as in the Kangavar Valley exemplify Median hill forts, where a fortified citadel from the late seventh century BCE included a large columned hall measuring 28 by 24 meters, supported by wooden columns on stone bases, serving as an audience or assembly space. This structure, built with mud-brick walls and a flat roof, represented an early apadana-like form, blending residential, ceremonial, and defensive elements in a compact, elevated enclosure. At Tepe Nush-i Jan near , a Median complex from the same era featured a central with fire altar, a fort, and a hall with mud-brick construction, emphasizing cultic and administrative roles atop a natural hill for strategic oversight. Decorative elements in these Median structures drew from local and Mesopotamian traditions, including motifs inspired by —small cast artifacts from the Early (c. 1000–650 BCE) in the depicting stylized animals, mythical creatures, and geometric patterns that likely influenced proto-Iranian ornamental metalwork and reliefs on architectural surfaces. Assyrian influences are evident in the adoption of columnar supports and hall layouts, as seen in the multi-roomed palaces at sites like , where tapered column bases and open audience spaces echoed palace designs from and , adapted to local mud-brick techniques for regional power projection. These pre-Achaemenid developments laid foundational techniques in mud-brick masonry and spatial organization, prioritizing functionality, symbolism, and defense amid diverse cultural exchanges.

Achaemenid Period

The Achaemenid Empire (550–330 BCE) marked a pivotal era in Iranian architecture, characterized by the construction of monumental imperial complexes that symbolized the empire's vast dominion and administrative sophistication. Founded by Cyrus the Great, the architecture emphasized grandeur through elevated terraces, expansive hypostyle halls, and intricate reliefs, blending functionality with symbolic power. Key sites included Pasargadae, established as the first dynastic capital around 550 BCE, and Persepolis, developed by Darius I from circa 515 BCE as a ceremonial center. These structures facilitated royal audiences and rituals, reflecting the empire's centralized authority. Pasargadae exemplified early Achaemenid innovation with its open layout and pioneering use of tall, freestanding columns. The Residential Palace (Palace P), constructed circa 535–530 BCE, featured a hall measuring 31.1 by 22.1 meters supported by five rows of six columns, each approximately 12 meters high, topped with zoomorphic capitals in black stone depicting lions, bulls, or hybrid creatures. An adjacent (75.5 by 9.3 meters) opened onto a royal garden, integrating architecture with landscaped spaces. The Audience Hall (Palace S), built around 539 BCE, employed a similar design with two rows of four columns on bases of 1.43 by 1.43 meters, emphasizing verticality and through slender shafts of white . Relief-carved elements, including guardian figures and symbolic motifs on doorways, adorned these palaces, showcasing precise stone masonry in contrasting black and white materials. The , a modest yet iconic structure completed circa 530 BCE, stood on a rectangular base of 13.35 by 12.30 meters with six receding tiers (heights decreasing from 170 cm to 57.5 cm), surmounted by a gabled roof and a small chamber accessed via a western door; its stepped form evoked Mesopotamian traditions while asserting Persian imperial identity. Persepolis expanded on Pasargadae's foundations with even greater scale, particularly in the , the grand audience hall initiated by and finished by around 480 BCE. This structure spanned about 1,000 square meters, supported by 72 towering columns reaching 24 meters in height, of which 14 remain today; each column featured bell-shaped bases and double-animal capitals—often twin bulls, eagles, or lions—symbolizing strength and protection. Broad staircases on the north and east facades, carved with detailed reliefs depicting delegates from 23 subject nations bearing tribute in procession (completed circa 500–490 BCE), provided dramatic access to the elevated platform, underscoring the empire's multicultural reach. The hall's design allowed for large gatherings, with capacity for at least 10,000 guests during ceremonial receptions. Achaemenid architecture synthesized diverse influences, harmonizing local Persian traditions with imported elements to create a unified style. Columns and proportions drew from Ionian models for elegance and height, while monumental stonework and palatial layouts incorporated techniques, such as precise masonry evident in the column bases and reliefs. , including floral motifs and animal guardians, blended Mesopotamian and Elamite heritage with Persian symbolism, as seen in the Apadana's tribute scenes and Pasargadae's hybrid capitals. This eclectic approach not only accommodated the empire's ethnic diversity but also projected universal kingship.

Parthian Period

The Parthian period (247 BCE–224 ) marked a transitional phase in Iranian architecture, blending traditions with Hellenistic influences following the Seleucid , resulting in innovative spatial arrangements and structural techniques that emphasized grandeur and cultural . This era saw the development of monumental complexes in key capitals and frontier cities, where architecture served both political and ceremonial functions, reflecting the Parthian Empire's vast territorial reach from to . Structures often featured mud-brick construction with advanced vaulting, adapting to local climates while incorporating open courtyards and axial planning to facilitate movement and hierarchy. A hallmark of Parthian design was the use of round halls and circular plans, exemplified at Old Nisa, the early dynastic capital in modern , where the Round Hall—a circular chamber approximately 17 meters in diameter—demonstrated sophisticated engineering with concentric walls and possible domed roofing, likely intended for royal rituals or storage of treasures. Similarly, palaces at , a major caravan city in northern , incorporated circular enclosures and pioneering iwans—vaulted rectangular halls open on one side—such as those in the royal palace complex, which foreshadowed later Islamic architectural motifs by integrating audience spaces with fortified enclosures. These elements combined defensive needs with aesthetic openness, using iwans to project power toward approaching visitors. At frontier sites like and , this fusion extended to decorative details, where orders, including capitals with acanthus leaves, merged with Iranian motifs such as griffins and floral arabesques carved in stucco or stone, creating a hybrid style that symbolized Parthian . Vaulted structures further showcased Parthian ingenuity, particularly in transitions from square bases to curved roofs, as seen in the remains of the palace at in northern , where squinch-like arches—triangular sections of —facilitated barrel vaults over rooms, allowing for larger enclosed spaces without excessive support columns. Urban planning during this period emphasized connectivity and monumentality, evident in the foundations of , the later imperial capital near modern , which featured arched gateways piercing city walls and colonnaded streets lined with porticos to shade pedestrians and merchants amid the Mesopotamian heat. These avenues, often flanked by shops and administrative buildings, integrated Hellenistic grid elements with Iranian emphasis on fortified enclosures, supporting Ctesiphon's role as a bustling trade hub linking , , and . Overall, Parthian architecture's legacy lies in its adaptive , bridging Achaemenid rigidity with more fluid, multicultural forms that influenced subsequent eras./)

Sasanian Period

The (224–651 CE) marked the zenith of pre-Islamic Iranian architecture, characterized by monumental engineering, sophisticated vaulting techniques, and a synthesis of indigenous traditions with influences from conquered territories. Structures emphasized imperial grandeur, religious symbolism, and functional innovation, often built with and stone to withstand the region's climate. This period saw the widespread adoption of the (ayvan), a vaulted rectangular hall open on one side, which became a hallmark of palatial and ceremonial spaces. A prime example of Sasanian engineering prowess is the Taq-e Kisra (Arch of Khosrow) at , the empire's capital near modern-day , . Constructed during the reign of (r. 531–579 CE), this massive features the world's largest surviving brick , spanning approximately 25 meters (84 feet) wide and rising to 35 meters (115 feet) high, without the use of centering supports. The structure, part of a larger complex, was adorned with marble revetments, glass mosaics depicting scenes from the conquest of , and intricate silk carpets embedded with gems, underscoring the empire's wealth and artistic sophistication. Its parabolic vaulting demonstrated advanced load distribution, influencing later architectural forms across the . Religious architecture flourished under Sasanian , particularly in the of fire temples dedicated to Zoroastrian worship, which often employed the chahar-taq plan—a square chamber supported by four piers and arches, typically crowned by a dome. These structures symbolized the central to Zoroastrian and imperial ideology. At sites like near , rock-cut fire altars and associated temple remnants illustrate this design, with the tower possibly serving as an early prototype or repository for sacred fires, featuring a cubic base and limited access to protect the sanctity of the space. Excavations reveal foundations and altar installations, confirming their role in state-sponsored ceremonies. Sasanian rock reliefs and tombs further exemplify the period's integration of architecture with sculpture, blending natural rock faces with carved facades to commemorate royal legitimacy. At , near , a cluster of four reliefs depicts scenes, such as (r. 240–270 CE) receiving the ring of power from , flanked by courtiers in elaborate robes. These high-relief carvings, executed in situ on cliff faces, measure up to 7 meters in height and incorporate architectural motifs like columns and arches, emphasizing divine kingship. The adjacent rock-cut tombs, though less preserved, feature gabled entrances mimicking Achaemenid styles but adapted with Sasanian , serving as eternal markers of imperial continuity. Provincial palace complexes, such as those at founded by , showcased decentralized imperial power through innovative layouts and . The so-called Palace B (or Valerian's Palace) features a plan with central iwans opening onto courtyards, constructed primarily of stone with fired vaults. Excavations uncovered extensive decorations, including floral motifs, figural scenes of banquets, and geometric patterns applied to walls and niches, reflecting Hellenistic and local influences. These elements, combined with rock reliefs on the palace's exterior depicting victories, highlight Bishapur's role as a frontier showcase of Sasanian artistry and engineering resilience.

Islamic Architecture

Early Islamic Period (7th–9th centuries)

Following the Arab conquest of Iran in the mid-7th century, early in the region represented a transitional phase, characterized by the pragmatic reuse and modification of pre-existing Sasanian structures to accommodate Muslim worship, while incorporating basic Arab-influenced elements such as the . This period saw limited new construction due to political instability and economic constraints under Umayyad and early Abbasid rule, resulting in simplified designs that prioritized functionality over ornamentation. Sasanian architectural legacies, including the chahar-taq form, were inherited and adapted, marking a blend of local traditions with emerging Islamic spatial needs. New builds, such as the 9th-century hypostyle mosque at Siraf using decoration, illustrate early adaptations of Arab plans to materials like . A prominent feature of this era was the conversion of Sasanian fire temples into mosques, often involving the addition of a mihrab—a niche indicating the direction of Mecca—without extensive structural alterations. These conversions symbolized the Islamization of sacred spaces and were common in urban centers where Zoroastrian temples had been central to community life. For instance, at Bishapur in Fars Province, an early Islamic mosque was constructed, possibly adapting Sasanian remains, with a mihrab added to an existing square chamber to facilitate prayer. Scholarly analysis confirms similar transformations in central Iran, where two documented fire temples were adapted into mosques by the 8th-9th centuries, retaining their domed chahar-taq plans while introducing Islamic liturgical elements like the mihrab carved in stucco. These adaptations highlight a continuity in building techniques, such as brickwork and vaulting, while shifting the ritual focus from fire altars to congregational prayer halls. The Friday Mosque (Masjed-e Jameh) of exemplifies the early Islamic typology in , with its foundational layers dating to the under Abbasid influence. Constructed initially as a simple hall supported by rows of columns—possibly reused from Sasanian structures—the featured modest decoration, including an early niche in the qibla wall to guide worshippers. This layout, established around 841 , emphasized open prayer spaces without domes or iwans, reflecting the austere Arab-style s introduced post-conquest and adapted to local materials like and baked brick. Excavations reveal that these early phases lacked elaborate ornamentation, focusing instead on functional expansion of the and systems to accommodate growing congregations. Emerging in the early , tomb towers marked a new funerary tradition in , drawing on Sasanian cylindrical forms but topped with conical roofs to evoke spiritual ascent. Early examples appeared in northeast and , featuring undecorated brick exteriors and internal chambers for cenotaphs, serving as memorials for local elites. These towers, typically 10-15 meters tall, represented a localized from pre-Islamic mausolea, with their simple geometric profiles prioritizing durability in seismic areas. Although datable primarily to the , their conceptual roots trace to late Abbasid experimentation in monumental commemoration. Later developments in regions like Rey produced 12th-century examples. Abbasid influences from the Samarra period (836-892 CE) reached Iran through administrative centers, where decorative motifs and structural ideas were locally adapted, particularly in minaret design. The iconic spiral minaret of 's Great Mosque inspired cylindrical tower forms in Iranian mosques, though adapted into straighter, square-based variants to suit regional bricklaying techniques and aesthetic preferences. By the , these elements appeared in eastern Iranian sites under Abbasid governors, blending Mesopotamian patterns with Persian proportions to create hybrid call-to-prayer towers integrated into complexes. This adaptation underscores the caliphate's role in disseminating architectural vocabulary across its provinces.

Regional Style Emergence (10th–11th centuries)

During the 10th and 11th centuries, Iranian architecture transitioned toward distinct regional styles as local dynasties like the Samanids in the east and in the northeast asserted greater autonomy following the fragmentation of Abbasid caliphal influence. This period fostered innovations that blended pre-Islamic Persian structural traditions with Islamic spatial organization, emphasizing local materials and motifs over centralized models. Architects in regions such as Fars, , and northern developed forms that highlighted regional identities, including advanced masonry and early experimentation with glazed surfaces, laying the groundwork for later Persianate architectural dominance. Under Buyid rule in Fars (934–1055 CE), early configurations emerged as precursors to the four-iwan plan, with mosques incorporating axial vaulted halls around courtyards. The Atigh Mosque (Jameh Mosque of Atigh) in , originally founded in the 9th century but expanded during Buyid patronage in the 10th century, features mihrabs and domes that underscored the dynasty's promotion of Shi'i and Persian cultural revival, influencing later full four-iwan developments. Mausolea from this era, particularly in Central Asian territories under Samanid control (819–999 CE), showcased intricate patterns that marked a departure from Abbasid austerity toward ornate, geometrically sophisticated surfaces. The Samanid Tomb in , constructed around 943 CE, is a prime example: this compact, domed cube (approximately 10.7 meters per side) employs unglazed baked bricks laid in interlocking patterns such as basket-weave, chevrons, and interlocking squares to create a textured facade that mimics weaves and evokes pre-Islamic Zoroastrian fire temples. The structure's four entrances, each framed by recessed arches, and its corner squinches with ribbed vaulting further demonstrate advanced brick-laying techniques, where bricks were cut and arranged without in some areas for seismic resilience; these patterns served both structural and decorative functions, symbolizing dynastic legitimacy and the Samanids' revival of Persian literary and architectural heritage. In northern , the produced the Gunbad-e Qabus (1006–1007 ), a towering tomb that epitomizes the era's monumental tomb tradition and regional innovation in verticality. Rising to 53 meters on a decagonal star-shaped base (17 meters in diameter), the hollow cylindrical shaft tapers gracefully to a conical dome, constructed entirely from fired without additional supports, achieving a slender profile visible from 30 kilometers away. Geometric inscriptions in raised script encircle the tower in two bands, commemorating the ruler Qabus ibn Voshmgir and invoking Qur'anic verses, integrated seamlessly into the to enhance the structure's ascetic yet imposing aesthetic; this design, rooted in local mathematical precision, influenced subsequent tomb towers in and by prioritizing height and proportion over interior space. The Fars region also witnessed the initial adoption of revetments during the 10th–11th centuries, shifting from prevalent carvings to early glazed panels that offered greater durability against the climate. In Buyid-era structures like mosques, unglazed or simply glazed tiles began covering lower walls and niches, featuring molded geometric and vegetal motifs in monochrome turquoise or white, as seen in fragments from the Atigh Mosque's restorations. This transition, driven by local potters adapting techniques from eastern , replaced labor-intensive reliefs with fired clay slabs that could withstand humidity while allowing for bolder color contrasts, setting the stage for the elaborate tilework of later periods.

Seljuk Period (11th–13th centuries)

The Seljuk period marked a pinnacle in Iranian architecture, characterized by the empire-wide standardization of monumental religious and educational structures, emphasizing intricate brickwork and geometric sophistication that unified diverse regional traditions. Under the (1037–1194), architects pioneered the four-iwan plan, refined dome construction techniques, and elaborate surface decoration using fired bricks, often glazed in turquoise for accents. This era's buildings, spanning from to , served not only functional purposes but also symbolized imperial authority and Islamic scholarship, with mosques and madrasas as central institutions. A prime example of Seljuk innovation is the reconstruction of the Great Mosque of during the late 11th century, transforming an earlier Buyid structure into a vast complex that exemplified the period's architectural ambition. The north dome chamber, known as the Taj al-Mulk Dome, was completed in 1088–1089 CE under the patronage of the Seljuk Taj al-Mulk Abu'l-Ghanem, standing as a rival to the earlier south dome built by his counterpart in 1086–1087 CE. This double-shell dome, with a 9.5-meter and 20-meter supported by 3-meter-thick walls, features tri-lobed squinches transitioning from a square base to an octagonal drum via pointed concave niches, showcasing advanced geometric precision in ribbing. The mosque's portals, particularly in the northwest and southeast iwans, incorporate early squinches—honeycomb-like vaulting elements in with dark blue glazed accents forming star-shaped geometric arabesques and epigraphic bands—representing a transitional ornamental technique that enhanced spatial depth and light play. These reconstructions, amid 's role as the Seljuk capital from 1055 CE, integrated the mosque into urban bazaars, fostering communal and economic vitality. In , Seljuk madrasas adopted the standardized four-iwan courtyard plan, organizing teaching spaces around a central open quadrangle to facilitate scholarly discourse and communal prayer. The Madrasa-i Nizamiyya in Khargird, built around 1068 by vizier as one of the earliest such institutions, exemplifies this layout with a square courtyard flanked by four axial iwans, including a prominent iwan with parallel piers, arches, and a mihrab niche; remnants suggest a second story for additional cells. These structures emphasized brick construction with carved terracotta details like chain and floral motifs on mihrabs, while turquoise-glazed tiles—introduced in the for monochromatic accents—adorned portals and upper walls, providing vibrant contrast against the earthy brick facades and symbolizing paradise gardens. Such madrasas proliferated in eastern , promoting the Nizamiyya amid the region's intellectual hubs like . Anatolian Seljuk caravanserais extended the empire's architectural reach westward, functioning as fortified rest stops along trade routes with defensive features adapted to turbulent frontiers. These stone-built complexes, often resembling small fortresses with thick walls, corner towers, and buttresses, featured a single, indirect L-shaped entrance to obstruct direct assault and protect the interior from intruders. For instance, the Agzikara Han (built 1153–1154 CE near ) employs an off-axis, L-shaped portal for the covered hall adjacent to the main northwest entrance, framed by geometric bands and hoods, allowing guards to monitor arrivals while concealing the vulnerable . This bent entrance design, combined with roof access for watchtowers, underscored the caravanserais' dual role in commerce and defense during the 12th–13th centuries. Towering inscribed brick minarets epitomized Seljuk mastery of verticality and , serving as call-to-prayer beacons and imperial markers. The in central (built ca. 1194 under Ghurid patronage within the Seljuk cultural sphere) reaches an impressive 65 meters in height, constructed from fired bricks in a cylindrical form with a square base and octagonal transition. Its surface is adorned with intricate inscriptions in blue-glazed tiles quoting Quranic verses and geometric interlace patterns, spiraling upward to emphasize height and spiritual aspiration; the structure tapers elegantly with 10 projecting balconies for structural relief. This minaret, among the tallest of its era, influenced subsequent designs across the empire through its fusion of engineering and ornament.

Ilkhanid Period (13th–14th centuries)

The Ilkhanid period (1256–1335 CE) in Iranian architecture emerged under Mongol rule following the devastating invasions, introducing eclectic styles that fused Persian Islamic traditions with Central Asian and Chinese elements. This era witnessed the construction of monumental mausolea and multifunctional complexes, reflecting the Ilkhanids' and their patronage of grand-scale projects amid political consolidation. Chinese influences, such as and dragon motifs, permeated decorations, symbolizing the cultural exchanges along , while innovations in dome construction and marked a transitional phase from Seljuk grandeur to later Persian revivals. A prime example of Ilkhanid mausolea is the Mausoleum of in Sultaniyeh, erected between 1304 and 1316 CE as the tomb for the ruler (r. 1304–1316), who shifted the capital there. This octagonal structure with a base approximately 25 meters in diameter features a pioneering double-shell dome rising to about 50 meters, constructed from brick and originally sheathed in turquoise-blue glazed tiles that created a shimmering effect against the skyline. The interior and exterior decorations incorporated Chinese-inspired motifs, including phoenixes with elaborate plumage, adapted into Persian tilework and stucco, highlighting the period's synthesis of Eastern aesthetics. As a , it exemplifies the era's engineering prowess and symbolic role in commemorating Mongol-Persian rulers. The Rab'-e Rashidi complex in , established around 1305 CE by the , stands as an early prototype of a planned and multifunctional institution. Spanning a large area north of the city along the Mehrān River, it integrated a for theological and scientific studies, a , an for astronomical research, and a vast reportedly holding 400,000 volumes, drawing scholars from across . Though largely ruined by earthquakes and invasions, archaeological remains reveal a grid-like layout with domed halls and courtyards, underscoring the Ilkhanids' emphasis on intellectual patronage and urban development. Ilkhanid architects adapted vernacular Mongol tent forms into permanent pavilions, translating the nomadic yurts' lightweight, circular structures and bent, upturned roofs into fixed buildings that evoked imperial mobility. These pavilions, often seen in palace complexes like those at Takht-i Sulayman, featured latticed wooden elements, colorful textile-like frescoes, and elevated platforms, blending the luxury of royal s—adorned with hangings and portable hearths—with durable brick and stone construction to suit sedentary rule. Stucco and fresco decorations flourished in Ilkhanid buildings, with carved revetments covering walls in intricate geometric, vegetal, and figural patterns, often complemented by painted . These media depicted scenes from pre-Islamic Persian legends, such as heroic tales from the , integrated into and palace interiors to evoke cultural continuity under Mongol patronage. Techniques involved hand-carving molds for repetitive motifs and layering with pigments, achieving a three-dimensional, canvas-like effect that enriched spaces like the mihrabs and portals.

Timurid Period (14th–15th centuries)

The Timurid period marked a renaissance in Persianate architecture, characterized by monumental scale, refined proportions, and lavish decoration that blended Central Asian, Persian, and Mongol influences under the patronage of Timur (Tamerlane) and his successors. Rulers like Timur, Shah Rukh, and Ulugh Beg invested heavily in urban centers such as Samarkand and Herat, transforming them into showcases of imperial power through grand mosques, madrasas, and mausolea that integrated turquoise-tiled domes and intricate tilework to symbolize eternal glory and divine order. This patronage not only revived earlier Islamic styles but also introduced sophisticated geometric abstractions, fostering a visual language of symmetry and infinity that influenced subsequent regional traditions. A prime example is the Gur-e Amir mausoleum in , commissioned by around 1403–1405 as a tomb for his grandson Muhammad Sultan and later expanded to house himself and other dynastic members. The structure features a modified octagonal plan with a projecting northern portal (pishtaq) that emphasizes axial grandeur, crowned by a bulbous, ribbed turquoise dome on a high , which dominates the city skyline and exemplifies Timurid double-shell vaulting for visual impact. Its exterior combines hazarbaf brickwork with two-tone blue tiles, while the drum bears a monumental inscription in white and black tiles proclaiming "God is eternal," underscoring the mausoleum's role in Timurid funerary propaganda. The in , built between 1399 and 1405 under Timur's direct commission following his Indian campaigns, represents the era's ambition through its vast layout spanning 109 by 167 meters, with arcades linking four massive and expanding to nine bays at the wall. Monumental portals dominate, including a 19-meter-high entrance iwan flanked by decagonal minarets and a 30-meter pishtaq at the sanctuary, all adorned with , haft rangi tiles, and carved stone to create a shimmering, jewel-like facade. This mosque, connected to the via a covered , highlighted Timur's urban vision of integrating religious, educational, and commercial spaces. Ulugh Beg's in , constructed from 1417 to 1420 as part of the ensemble, exemplifies scholarly patronage with its two-story rectangular layout enclosing a , corner minarets, and a massive pishtaq portal rising twice the building's height to frame an leading to student cells and a domed . Decorated in hazarbaf brick, mosaic faience, and colorful haft rangi tiles, it incorporated astronomical motifs reflecting Ulugh Beg's interests as a and , blending with architectural splendor in a plan that supported up to 50 students. Timurid architects advanced girih geometric tiles—sets of five equilateral polygons (decagon, pentagon, bowtie, rhombus, hexagon) inscribed with strapwork lines—to produce abstract, interlocking patterns with decagonal symmetry, as seen in structures like the Shrine of Khwaja Abdullah Ansari in Herat (1425–1429), where periodic tilings covered surfaces in infinite, non-repeating designs that evoked mathematical precision and cosmic harmony. These tiles, enabling both periodic and quasi-crystalline layouts, were pivotal in abstracting ornamental motifs across Timurid facades and interiors, prioritizing conceptual depth over figural representation.

Safavid Period (16th–17th centuries)

The Safavid period marked a in Iranian architecture, with emerging as the meticulously planned capital under Shah Abbas I (r. 1588–1629), emphasizing grand urban spaces that integrated Shia religious symbolism, imperial authority, and public functionality. This era's designs shifted from the Timurid focus on eastern to monumental complexes in the Iranian heartland, featuring expansive squares, axially aligned structures, and intricate tilework that reflected Safavid patronage of the arts and Shiism. Key innovations included the alignment of religious buildings to face while maintaining visual harmony with secular elements, creating cohesive urban ensembles that symbolized the dynasty's power and piety. Central to this architectural vision was (Maydan-i Imam), constructed between 1590 and 1595 as an eight-hectare multifunctional plaza for state ceremonies, equestrian sports like , and commerce. Measuring approximately 512 by 159 meters, the square was flanked by pivotal Safavid monuments: the Imam Mosque (formerly Shah Mosque) to the south, the Sheikh Lotfollah Mosque to the east, the Palace to the west, and the northern Qaysariya portal leading to the imperial bazaar, mint, and . Arcaded shops enclosed the perimeter by 1602, fostering economic vitality while the open space hosted festivals and parades, embodying Shah Abbas I's strategy to centralize power and showcase Isfahan's grandeur. The Sheikh Lotfollah Mosque, completed in 1617–18 under Shah Abbas I's commission and designed by architect Mohammad Reza Isfahani, exemplifies Safavid refinement in religious architecture, functioning as a private or familial prayer space rather than a congregational mosque. Elevated on a platform and angled about 45 degrees to qibla orientation, its entrance features a recessed portal adorned with colorful mosaic tiles, muqarnas vaulting, and floral motifs, connected by dark, winding corridors that dramatically open into a light-filled domed chamber measuring 19 by 19 meters. The interior dome, a single-shell structure supported by squinches and kite-shaped shields, boasts a sunburst pattern of descending peacock-hued tile medallions that shift from cream to rose under light, creating an ethereal, transformative effect symbolizing spiritual ascent. Opposite the , the Palace served as the monumental gateway to the imperial precinct, evolving from a two-story atrium in the early into a six-story structure by the mid-1600s, with open talar balconies on upper levels offering panoramic views of the square for royal oversight. The top-floor music room, known for its exceptional acoustics, features walls and ceiling embedded with over 4,000 niches shaped like vases, jars, and musical instruments—such as lutes and flutes—to diffuse sound evenly, minimize echoes, and amplify performances for audiences below, a testament to Safavid ingenuity in integrating art and engineering. Complementing the square's axial drama, Chahar Bagh Avenue formed Isfahan's primary north-south urban spine, laid out in 1596–97 by Shah Abbas I as a 1,650-meter tree-lined boulevard divided into cruciform gardens by waterways and paths, sloping gently southward with a central cascade channel for aesthetic and climatic cooling. Lined with plane trees and initially flanked by noble residences and palaces, it connected the Maidan to the Zayandeh River and Julfa suburb, promoting promenades and social interaction in line with Safavid urban ideals. The avenue culminated in the Madar-i Shah Madrasa (Chahar Bagh School), constructed between 1706 and 1714 as the era's final major imperial project, featuring a domed with ornate tiled iwans and arcades dedicated to theological , underscoring the period's blend of and architectural splendor.

Post-Safavid Periods (18th–early 20th centuries)

The Post-Safavid periods in Iranian architecture, spanning the Zand (1751–1794) and Qajar (1794–1925) dynasties into the early Pahlavi era, reflect a phase of political fragmentation and cultural eclecticism, where traditional Persian forms were revived alongside emerging Western influences. Under the Zand dynasty, Shiraz served as the capital, fostering a return to regional styles adapted to local climates. The Vakil Mosque, commissioned by Karim Khan Zand between 1751 and 1773, exemplifies this era's architecture with its octagonal vestibule and central dome supported by eight stone columns, designed to facilitate natural ventilation and cooling in Shiraz's arid environment through an open courtyard and thick walls that minimize heat gain. The shifted the capital to , leading to grand palatial complexes that blended indigenous Persian elements, such as formal gardens with pools and fountains, with European-inspired salons and neoclassical motifs introduced via diplomatic exchanges. The , originally initiated in the 18th century but extensively expanded during the 19th under rulers like Naser al-Din Shah (r. 1848–1896), integrates these styles in its eight museum buildings, where traditional Persian tilework and mirror decorations coexist with cast-iron verandas and oil paintings reflecting Western artistic techniques. Qajar artisans further innovated in , producing tilework panels—often termed "cartoons" for their narrative compositions—that depicted historical scenes from earlier Persian eras, such as Safavid receptions, to evoke national continuity; a notable example is a late 19th-century molded tile reproducing Shah Abbas I's welcome of Vali Muhammad Khan, inspired by murals in Isfahan's Palace. By the early 20th century, as the Qajar regime waned and the emerged in 1925, urban planning in began incorporating modern infrastructure to accommodate rapid growth, including the introduction of radial boulevards that radiated from central squares to improve traffic flow and symbolize progress. These avenues, planned in the and atop remnants of the old city walls, marked a transitional shift toward Western-inspired while preserving some Qajar-era spatial hierarchies around the and royal compounds.

Iconic Architectural Features

Domes and Vaulting Systems

Domes represent a of Iranian architectural innovation, evolving from pre-Islamic origins to sophisticated Islamic forms that emphasized structural ingenuity and spiritual symbolism. In the Sasanian period (3rd–7th centuries ), domes were first constructed on squinches—arched structures that bridged the transition from square bases to circular dome profiles—allowing for the covering of rectangular or square chambers with curved roofs. This technique appeared in key structures like the palace at Fīrūzābād in Fārs and Qalʿa-ye Doḵtar, marking an early mastery of vaulted forms in brick masonry that influenced subsequent Islamic designs. As Iranian architecture transitioned into the Islamic era ( onward), squinches remained prevalent, evolving into more complex (honeycomb) vaulting, while pendentives—triangular segments that more smoothly integrate domes over square plans—emerged as an alternative, particularly in regions influenced by Byzantine styles, though squinch-based systems dominated preferences for their adaptability to local materials and aesthetics. During the Seljuk period (11th–13th centuries), Iranian architects advanced dome construction through the introduction of double-shell designs, consisting of an inner dome for interior space and an outer shell for exterior form, which allowed independent profiling of both surfaces to achieve proportional harmony and enhanced stability. This innovation, fully realized in brick, enabled taller exteriors without compromising internal heights and was exemplified in tomb towers like those at , where the masonry double shells represented the earliest known examples in . The double-shell approach distributed loads more effectively across the structure, reducing stress on the base and permitting intricate brick patterns on exteriors. In the Timurid era (14th–15th centuries), domes adopted a distinctive onion-shaped or bulbous profile, characterized by a swelling, pointed form that extended beyond a hemispherical curve, mounted on tall drums to amplify visual height and facilitate light diffusion through or latticed elements. These forms, culminating Central Asian influences in Persian architecture, created a dramatic that emphasized verticality and quality, as seen in mausolea where the bulbous exterior contrasted with shallower interiors for spatial illusion. The design not only served aesthetic purposes but also structurally aided in counteracting lateral thrusts from the dome's weight. Structurally, Iranian domes were predominantly built from fired laid in concentric rings, relying on temporary wooden centering—scaffolded frameworks—to the arching courses during construction until the mortar set and self-supporting took over. This method ensured even load distribution radially from the to the base, with bricks often laid in interlocking patterns like herringbone to enhance tensile resistance in earthquake-prone regions; the absence of extensive timber resources in the necessitated such efficient, centering-minimized techniques that minimized material use while maximizing durability. Symbolically, domes in Iranian architecture embodied cosmic representations, evoking the vault of heaven and the divine order, a motif traceable to pre-Islamic Zoroastrian cosmology where the dome mirrored the concept of the sky () as a protective arch. In Islamic contexts, this evolved to signify the and paradise, often adorned with Quranic inscriptions invoking God's sovereignty and the , reinforcing the dome as a microcosm of the universe that linked earthly worship to heavenly realms.

Iwans, Portals, and Minarets

In Iranian Islamic architecture, , , and minarets serve as key vertical and transitional elements that define spatial hierarchy and facilitate communal rituals. The , a vaulted rectangular hall open on one side to a , evolved to emphasize dramatic proportions with a relatively shallow depth compared to its height, allowing for enhanced acoustic projection during sermons and a visually imposing frame that draws the eye upward toward the sky. This form, observed in structures like the Great Mosque of Isfahan, optimizes sound distribution within the while creating a sense of grandeur and enclosure, where the shallow depth relative to height amplifies echoes for the call to prayer or religious discourse without overwhelming intimacy. Similarly, known as pishtaqs—recessed arched gateways projecting from facades—developed during the Seljuk period (11th–13th centuries) as monumental entrances to , often crowned with intricate hoods that transition smoothly from flat surfaces to curved vaults, symbolizing a portal to the divine. Exemplified in the Mustazhiriya in (c. 1110s), these pishtaqs integrated squinches to add depth and , evolving from simpler Abbasid recesses into multifaceted decorative frames that heightened the portal's axial emphasis. Minarets, slender towers integral to mosques, underwent typological shifts from solitary cylindrical forms in the early Islamic era to paired, fluted designs under the Safavids (16th–17th centuries), primarily to broadcast the () across urban landscapes. Early examples, such as the cylindrical brick minaret at (c. ), featured plain shafts up to 20 meters tall for structural stability and sonic reach, reflecting Seljuk innovations in verticality. By the Safavid period, paired fluted minarets—octagonal or multifaceted with vertical grooves—flanked iwans and pishtaqs, as seen in the Masjed-e Emam in (17th century), where their symmetrical placement enhanced visual balance and amplified the muezzin's voice through resonant chambers at the base. These evolutions underscore minarets' dual role in signaling and ensuring auditory clarity over distances. In utilitarian structures like caravanserais, portals incorporated defensive bent entrances—L-shaped or dog-leg passages—to obstruct direct lines of sight and impede intruders, a feature prominent in Safavid roadside inns along trade routes. Such designs, as in the Caravanserai of Meybod (17th century), forced entrants to turn sharply after the initial pishtaq, allowing guards to monitor access while protecting merchants and livestock within the fortified courtyard. This security measure complemented the iwan's transitional openness in religious contexts, adapting shared formal elements to practical needs without compromising architectural cohesion.

Ornamentation and Tilework

Ornamentation in Iranian architecture, particularly from the post-10th century onward, emphasizes intricate surface decorations that enhance structural forms without altering their function, drawing on a rich tradition of motifs adapted to Islamic . Tilework emerged as a dominant medium, utilizing glazed ceramics to create vibrant, durable embellishments on walls, domes, and portals, while allowed for finely carved details in interior niches. These techniques not only protected surfaces from environmental wear but also conveyed spiritual and cultural through stylized patterns. Floral arabesques, geometric designs, and interweave to produce a harmonious visual , reflecting the of pre-Islamic with Islamic prohibitions on figural . Haft-rangi, or seven-color tile mosaics, represent a pinnacle of Safavid decorative , employing , , green, yellow, red, white, and black glazes on square tiles fired together to form cohesive panels. These mosaics adorn mosque interiors and exteriors, prominently featuring swirling floral arabesques that evoke gardens of paradise, as seen in the expansive revetments of Isfahan's religious complexes. Introduced under Shah Abbas I to streamline production compared to earlier cut-tile methods, haft-rangi balanced artistic complexity with efficiency, allowing rapid coverage of large surfaces while maintaining luminous effects through color contrasts and light reflection. Calligraphic inscriptions in and naskh scripts serve as both decorative and didactic elements, inscribed on portals and domes to proclaim Quranic verses, historical dedications, and royal patronage. Angular script, with its bold, geometric lines, often frames portals in brick or tile, evoking early Islamic austerity, while the more fluid naskh appears in stucco or glazed panels on domes, facilitating legible religious texts. In structures like Isfahan's Masjed-e Jame', these scripts coexist on the same facade, layering chronological narratives—such as Seljuq-era foundations alongside Safavid restorations—to underscore architectural continuity. Muqarnas, resembling stalactite vaulting, are crafted in to decorate niche interiors, transitioning smoothly from flat walls to curved ceilings through tiered, honeycomb-like cells. This three-dimensional pattern, modular in design, creates dynamic shadows and a sense of ethereal suspension, often gilded or painted for added opulence in niches. Originating in 10th-century , muqarnas evolved from forms to symbolize the infinite, integrating seamlessly with surrounding arabesques and to heighten spiritual immersion. Pre-Islamic motifs, such as the lotus flower symbolizing purity and renewal in Sassanian art, gradually evolved into abstracted Islamic geometrics, adapting Zoroastrian vegetal forms into non-figural patterns suitable for religious contexts. Sassanian es, depicted as palmettes or anthemions in friezes, influenced early Islamic designs by rescaling into interlocking scrolls and rosettes, which by the merged with girih geometric grids. This transformation preserved symbolic fertility while aligning with aniconic principles, as evidenced in Central Asian mosques where lotus-derived elements frame star polygons.

Modern and Contemporary Architecture

Pahlavi Era (1925–1979)

The Pahlavi era (1925–1979) represented a transformative phase in Iranian architecture, characterized by aggressive modernization efforts under Reza Shah Pahlavi and his son Mohammad Reza Shah, who sought to align the nation with Western technological and aesthetic standards while invoking pre-Islamic Persian heritage to foster national identity. This period saw the introduction of reinforced concrete, steel, and glass as primary materials, replacing traditional brick and tile in many public and monumental projects, often under the guidance of European-trained architects. The shift emphasized secular, functional designs influenced by European movements, yet frequently incorporated Persian motifs such as iwans and arches to create a hybrid style that symbolized Iran's transition from Qajar eclecticism to global modernity. A prominent example of this fusion is the Railway Station, completed in 1938 as part of the project, which served as a symbol of Reza Shah's infrastructure ambitions. Designed initially by Polish architect Władysław Horodecki and finalized by German firm Philipp Holzmann, the station utilized —the first such structure in —for its robust framework, allowing for expansive interiors and multi-story elevations. Its facade featured a neoclassical style with symmetry and elongated proportions. Public buildings further exemplified the era's Western influences, particularly the French Beaux-Arts tradition, which emphasized symmetry, classical proportions, and ornate detailing. , established in 1934, embodied this approach through its central campus buildings, designed by architects like Nikolai Markov and later expanded by Beaux-Arts alumni such as Mohsen Forughi. Features included grand colonnades, pedimented entrances, and axial layouts adapted to Tehran's topography, fostering an academic environment that promoted while subtly integrating Persian decorative motifs like vaulting in interiors. This style extended to other institutions, underscoring the Pahlavi regime's use of architecture to project enlightened progress. The , constructed between 1948 and 1950 in Rey near , highlighted the era's revivalist tendencies with modern materials. Designed by Forughi, Zafar, and Sadegh, the structure featured a large central dome clad in white marble, echoing the forms of ancient Achaemenid and Sassanian tombs while employing contemporary engineering for its 25-meter span and supporting chahar-taq plan. Positioned adjacent to the historic , it symbolized the dynasty's continuity with Persia's imperial past, using the dome's purity and scale to convey Reza Shah's foundational role in national rebirth. Urban projects like Laleh Park (originally Farah Park), developed in the 1960s–1970s under Mohammad Reza Shah, integrated modern landscaping principles into 's expanding fabric, prioritizing open green spaces for public leisure over traditional enclosed . Spanning 35 hectares in central , the park incorporated geometric pathways, fountains, and sports facilities designed by landscape architects influenced by European modernism, such as Herta Hammerbacher, contrasting with Qajar-era walled enclosures by emphasizing accessibility and rational planning. This initiative reflected the regime's vision of a cosmopolitan capital, with the park serving as a backdrop for cultural venues like the , blending functionality with subtle nods to paradise layouts through water channels and tree-lined avenues.

Post-Revolutionary Developments (1979–present)

Following the 1979 Islamic Revolution, Iranian mosque architecture shifted toward designs that prioritize , simplicity, and alignment with Islamic principles, often moving away from ostentatious traditional elements like prominent minarets and domes to foster a sense of humility and accessibility. A notable example is the Vali-e-Asr Mosque in , completed in 2017, which features a minimalist wave-like structure without minarets or a central dome, allowing natural light to filter through expansive windows to create an intimate prayer space. Architect emphasized that the design draws from Qur'anic ideals and the simplicity of the Prophet Muhammad's , aiming to appeal to younger urban worshippers while harmonizing with surrounding modern buildings like the City Theatre. Despite initial controversy from conservative clerics who viewed the absence of traditional symbols as an "insulting postmodern" deviation, the project reflects a broader post-revolutionary trend toward functional, unpretentious religious spaces that integrate contemporary with Islamic . Another emblematic project is the Imam Khomeini Musalla in , initiated in 1985 as a vast complex intended to accommodate over 400,000 worshippers, underscoring the revolution's emphasis on communal Islamic identity through expansive, open prayer halls rather than elaborate ornamentation. Designed by Parviz Moayyed Ahd, the structure incorporates modest geometric patterns and tiled surfaces inspired by historical mosques, but prioritizes scale and utility over decorative excess, with ongoing construction phases adapting to post-revolutionary resource constraints. As of 2025, the partially completed complex serves as a key site for major religious gatherings, exemplifying how revolutionary has influenced large-scale religious architecture to promote collective piety without Western-influenced grandeur. In response to Iran's seismic vulnerability, post-revolutionary developments have emphasized sustainable, earthquake-resistant high-rises in , utilizing local materials like clay-based composites and recycled aggregates to enhance resilience while minimizing environmental impact. For instance, urban regeneration projects in central incorporate base isolation techniques and locally sourced to improve seismic performance, reflecting a shift from pre-revolutionary Western imports toward self-reliant designs that integrate traditional load-bearing principles with modern engineering. These adaptations not only address 's rapid urbanization—where high-rises now constitute over 40% of new constructions—but also promote by reducing reliance on imported and , as seen in guidelines from the Building and Housing Research Center that mandate local material use for seismic compliance since the . Contemporary Iranian architecture has embraced techniques in public projects, blending digital modeling with traditional motifs to create innovative forms amid global influences. The Pavilion at Expo Milan 2015 exemplified this approach, featuring parametrically generated facades that mimic organic Persian garden patterns using lightweight local composites, allowing for flexible, modular structures that adapt to needs while evoking . Such designs highlight Iran's integration of computational tools—introduced in architectural during the —to produce efficient, aesthetically dynamic spaces despite isolation from international markets. U.S. sanctions, intensified since 2010 and expanded in 2025 to target materials like alloys and chemicals, have compelled Iranian architects to innovate with recycled materials, such as repurposed and locally processed plastics, to circumvent import restrictions and sustain building projects. This has led to resourceful practices, including the use of recycled rubber from tires in earthquake isolators and upcycled in facades, as documented in environmental impact studies showing a 25% increase in domestic for since 2015. These adaptations not only mitigate economic pressures but also enhance , with reports indicating reduced carbon footprints in urban developments through localized supply chains.

Legacy and Recognition

Notable Iranian Architects

In the history of Iranian architecture, particularly during the Timurid and Safavid periods, many master builders operated anonymously, their identities lost to time despite their profound contributions to iconic structures like mosques and palaces that defined aesthetic and engineering prowess. These unnamed artisans, often organized in guilds, excelled in complex techniques such as , tile glazing, and structural innovation, enabling the creation of expansive domes and iwans that symbolized imperial power and religious devotion. Their collective legacy underscores the collaborative nature of pre-modern Iranian building practices, where individual fame was secondary to communal mastery. One of the few named historical figures to emerge from this era is Ustad Ali Akbar Isfahani, a Safavid architect celebrated for his expertise in dome construction during the early 17th century. Serving under Shah Abbas I, Isfahani led the design and execution of the Shah Mosque (now Imam Mosque) in , where his double-shelled dome—rising to over 50 meters with intricate geometric patterns—exemplifies the pinnacle of Safavid engineering and ornamental harmony. His work integrated mathematical precision with artistic flourish, influencing subsequent generations of builders in Iran and beyond. Transitioning to the modern period under the , André Godard (1881–1965), a French architect and archaeologist, became a transformative figure in Iranian and design. Appointed director of Iran's Archaeological Service in 1928, Godard introduced Beaux-Arts principles and modernist elements to , overseeing the city's expansion with wide boulevards, public buildings, and preservation efforts that fused European rationalism with indigenous motifs. His influence extended to educational reforms, training a generation of Iranian architects at the Fine Arts University (now ), thereby laying the groundwork for 20th-century Iranian modernism. In the post-revolutionary era, (born 1954), a German-Iranian architect raised in , has championed sustainable innovations that address environmental challenges while honoring cultural roots. Through his firm Hadi Teherani Architects, he has designed projects emphasizing , natural materials, and contextual integration, such as urban developments in that prioritize green spaces and systems derived from traditional Persian windcatchers. Teherani's holistic approach—blending functionality, aesthetics, and ecology—has earned international acclaim, promoting resilient architecture amid Iran's rapid . Contemporary Iranian architecture also highlights the rising prominence of women practitioners, exemplified by Leila Araghian (born 1983), whose parametric designs in the 2010s revitalized Tehran's public spaces. With a master's from the , Araghian founded Diba Tensile Architecture, specializing in membrane structures; her breakthrough project, the Tabiat Pedestrian Bridge (completed 2014), features undulating, nature-inspired forms spanning 270 meters, fostering social connectivity and urban greening in a densely populated setting. Araghian's work demonstrates parametricism's potential for adaptive, site-specific solutions, earning awards like the and inspiring eco-conscious urban interventions.

UNESCO World Heritage Sites

As of November 2025, boasts 29 World Heritage Sites, with the majority being cultural properties that exemplify the nation's profound architectural legacy spanning millennia, from ancient monumental complexes to intricate Islamic ensembles. These sites underscore 's contributions to global architectural history, including innovative , , and , while ongoing preservation efforts address challenges like seismic risks and . Among them, several stand out for their architectural merit, recognized for their technical mastery and cultural symbolism. Persepolis, inscribed in 1979, represents the pinnacle of with its grand terraces, colossal columns, and intricate bas-reliefs depicting imperial ceremonies, showcasing advanced stone masonry and that influenced subsequent Persian and global monumental styles. The site's preservation status remains stable, with UNESCO-supported restoration projects focusing on earthquake-resistant reinforcements to protect its structural integrity against natural threats. The Meidan Emam in , also inscribed in 1979, exemplifies Safavid urban architecture as a vast rectangular square flanked by the Shah Mosque, Palace, and Sheikh Lotfollah Mosque, featuring harmonious proportions, azure-tiled domes, and iwans that integrate architecture with landscape and hydrology via surrounding canals. This ensemble highlights the Safavid era's synthesis of Persian, Islamic, and Timurid elements, serving as a model for civic spaces worldwide; conservation efforts as of 2025 include monitoring pollution impacts on its intricate tilework. Pasargadae, designated in 2004, preserves the earliest known examples of Achaemenid royal architecture, including the Great's —a simple yet elegant gabled structure—and expansive gardens with precise axial planning that laid foundations for paradise garden designs across . Its global significance lies in demonstrating early imperial and multicultural influences; current preservation involves vegetation control and archaeological mapping to mitigate . Gonbad-e Qabus, inscribed in 2012, is a towering brick from the 11th century, standing at 53 meters with a double-layered conical form that exemplifies Seljuk engineering ingenuity in load-bearing domes and seismic-resistant construction, symbolizing astronomical and religious aspirations. As one of the tallest brick towers globally, it highlights Iran's medieval advancements in vertical architecture; 2025 status reports indicate successful stabilization against . The Persian Caravanserai, inscribed in 2023, comprises a serial nomination of 54 roadside inns from the 12th to 19th centuries that illustrate the evolution of Qajar and earlier architecture with fortified walls, central courtyards, and vaulted iwans designed for trade route functionality and defense. These structures reflect Iran's role in connectivity and adaptive building techniques; preservation initiatives now emphasize to prevent overuse degradation. A notable recent addition is the Prehistoric Sites of the Valley, inscribed in 2025, which includes five caves and one in , offering evidence of early human architectural adaptations through rock shelters and cave dwellings spanning over 60,000 years of occupation. This site highlights Iran's deep prehistoric legacy in environmental integration and early settlement patterns, with preservation focusing on protecting fragile archaeological layers from erosion and .

References

  1. [1]
    An Investigation of Historical Structures in Iranian Ancient Architecture
    Architecture in Greater Iran has a continuous history from at least 5000BCE to the present, with characteristic examples distributed over a vast area from Syria ...
  2. [2]
    Silk Road Seattle - Isfahan - University of Washington
    Iranian architecture was shaped by the building traditions of diverse ethnic groups which for centuries competed to rule the territory, mainly, Arabic, Turkish, ...
  3. [3]
    Bam and its Cultural Landscape - UNESCO World Heritage Centre
    Bam is situated in a desert environment on the southern edge of the Iranian high plateau. The origins of Bam can be traced back to the Achaemenid period.Documents · Maps · Gallery · Videos
  4. [4]
    Iran, 1000–1400 A.D. | Chronology | Heilbrunn Timeline of Art History | The Metropolitan Museum of Art
    ### Key Points on Iranian Architecture (1000–1400 A.D.)
  5. [5]
    The Beaux-Arts System and the Construction of Iranian Architectural ...
    Mar 1, 2025 · In the developmental context of twentieth-century Iran, architecture transformed into an expression of Iranian modernism, providing “visual and ...
  6. [6]
    Historic City of Yazd - UNESCO World Heritage Centre
    Buildings are built of earth. The use of earth in buildings includes walls, and roofs by the construction of vaults and domes. Houses are built with courtyards ...Gallery · Maps · Documents · Indicators
  7. [7]
    https://www.us-iran.org/resources/2021/7/15/myth-vs-fact-iranian-architecture
  8. [8]
    [PDF] FAROHAR/FRAVAHAR MOTIF - Heritage Institute
    When. Achaemenid rule ended, so did the use of the winged motif – until, that is, about say two hundred years ago – when the farohar motif began to be adopted ...
  9. [9]
    Geometric Patterns in Islamic Art - The Metropolitan Museum of Art
    Oct 1, 2001 · Geometric patterns make up one of the three nonfigural types of decoration in Islamic art, which also include calligraphy and vegetal patterns.
  10. [10]
    The architecture of the four-īwān building tradition as a ...
    The four-īwān plan is examined as a dynastic architectural tool marking the centre of the world, from which power spreads along the cardinal points to all ...Missing: layout | Show results with:layout
  11. [11]
    The Persian Garden - UNESCO World Heritage Centre
    Always divided into four sectors, with water playing an important role for both irrigation and ornamentation, the Persian garden was conceived to symbolize Eden ...
  12. [12]
    Semiology of Art and Mysticism in Persian Architecture According to ...
    Nov 4, 2022 · The play of light and shadow in the transition through the lattice windows shows the audience a pleasant feeling of the arrays used and the ...
  13. [13]
    [PDF] Orientation Towards Qibla in Iranian Mosques
    Abstract. A deciding factor in the design of a mosque is the direction of the qibla. The qibla is directed toward the. Kaaba, which marks a fixed direction ...
  14. [14]
    Faravahar - World History Encyclopedia
    Feb 12, 2020 · The Faravahar is the best-known symbol from ancient Persia of the winged sun disk with a seated male figure in the center.
  15. [15]
    https://www.iranicaonline.org/articles/art-in-iran-xii-iranian-pre-islamic-elements-in-islamic-art
  16. [16]
    CONSTRUCTION MATERIALS AND TECHNIQUES in Persian ...
    Plano-convex bricks, which are shaped like cushions or bread loaves, with one flat and one convex face, first appeared in Persia in the 8th-7th millennia b.c.e. ...
  17. [17]
    review of an ancient persian lime mortar “sarooj” - ResearchGate
    Aug 10, 2025 · Sarooj sard is manufactured by mixing lime, ash and water (lime-pozzolana mixture), with clay and sand also added (Masoumi, Banakar, and ...
  18. [18]
    Haft rang or cuerda seca? Spectroscopic approaches to the study of ...
    Aug 10, 2025 · Seventeenth century polychrome overglaze haft rang tiles found in various regions of Iran (Isfahan, Qazvin, Mashhad, and Mazandaran) were ...Missing: kashi scholarly
  19. [19]
    Technological study of the seventeenth century haft rang tiles in Iran ...
    In the twentieth century, art historians attributed this type of polychrome technique to a Spanish style of making polychrome glazed objects called cuerda seca.Missing: kashi rangi scholarly
  20. [20]
    From Soil to Domes: Vernacular Architecture and Construction ...
    Aug 13, 2021 · The arid regions of Eastern Iran are characterised by a massive use of earth and gypsum for construction, techniques that were to remain fixed ...
  21. [21]
    The technology, management, and culture of water in ancient Iran ...
    Apr 4, 2023 · They dug qanats and constructed dams and networks of water canals, drainage systems, and waterways with state-of-art technology and managerial ...<|control11|><|separator|>
  22. [22]
    Arches and Ribbed Vaults of the Iranian Tradition - Academia.edu
    Persian architecture uniquely evolved through skilled craftsmen using brick, leading to innovative structural designs. Islamic architecture in Iran ...<|control11|><|separator|>
  23. [23]
    [PDF] Persian vaulted architecture: morphology and - WIT Press
    The purpose of the research is to analyze the evolution of techniques of vaulting of the Persian architecture of the 3rd century to the 15th century, to test ...
  24. [24]
    Persian Mosque - UNESCO World Heritage Centre
    In Iran, mosque architecture and their intangible values are rooted in pre-Islamic monotheistic beliefs. After the advent of Islam, during 1st century AH, those ...
  25. [25]
    Central Courtyard in Traditional Mosques of Iran - Academia.edu
    In the arid regions of Iran, the Sahn creates a cooler microclimate by providing shade, reducing temperature and enhancing humidity through evaporation, ...Missing: layouts communal
  26. [26]
    Muqarnas | Grove Art - Oxford Art Online
    The vault of the Western type rises from muqarnas pendentives, whereas the vault of the Iranian type rests on squinches themselves made of muqarnas cells; both ...
  27. [27]
    Geometric Vaulting of The Muqarna | PDF | Architectural Design
    Apr 22, 2021 · The muqarnas is a distinctive geometric vaulting structure used widely in Islamic architecture. It originated in either northeastern Iran or ...
  28. [28]
    [PDF] Types of town planning in ancient Iranian cities: new considerations
    Mar 17, 2023 · Achaemenid towns had two types: political centers with a loose distribution of buildings, and fortified settlements like compact clusters of ...
  29. [29]
    BAZAR i. General - Encyclopaedia Iranica
    The Iranian bāzār is a unified, self-contained building complex of shops, passageways, and caravanserais, interspersed with squares (meydān), religious ...Missing: mahalla | Show results with:mahalla
  30. [30]
    KASHAN v. ARCHITECTURE (1) URBAN DESIGN
    May 1, 2012 · The city of Kashan, similar to other older Iranian cities, preserved its traditional architectural features and urban design into the early 20th century.Missing: Defensive | Show results with:Defensive
  31. [31]
    The Case of Persian Qanats, a UNESCO World Heritage Property
    Apr 2, 2023 · The Persian Qanats, ancient underground aqueduct systems that have provided irrigation water to arid regions in Iran for over 3000 years, ...
  32. [32]
    Iran's ancient engineering marvel - BBC
    Jun 20, 2018 · These underground aqueducts have allowed Iranians for millennia to access and transport water in some of its most arid regions. One of the most ...
  33. [33]
    Ancient Urban Gardens of Persia: Concept, History, and Influence ...
    Oct 8, 2019 · The design of each Persian garden is influenced by climate, art, beliefs, poetry, literature, and romance of the country and the region where the garden is ...
  34. [34]
    (PDF) urban patterns in pre Safavid Isfahan - Academia.edu
    They encircled part of the town with a defensive wall and built a strong citadel in its southwest quadrant. The exact date of the walls is not known, but ...Missing: moats | Show results with:moats
  35. [35]
    (PDF) Isfahan School of urban design: a morphological perspective
    Feb 25, 2015 · Isfahan school of urban design has particularly played a significant role in creating to be highly influential in development of Islamic cities in the region.Missing: moats radial
  36. [36]
    https://www.iranicaonline.org/articles/coga-zanbil
  37. [37]
    Tchogha Zanbil - UNESCO World Heritage Centre
    The ziggurat was given a facing of baked bricks, a number of which have cuneiform characters giving the names of deities in the Elamite and Akkadian languages.
  38. [38]
    From Median to Achaemenian Palace Architecture - Academia.edu
    Excavations at Godin Tepe reveal elements like hypostyle halls and upstairs private living areas, indicating the early foundations of palatial architecture. ...Missing: hill | Show results with:hill
  39. [39]
    PALACE ARCHITECTURE - Encyclopaedia Iranica
    Jul 28, 2008 · The architectural type seems to have been widespread in Median and Achaemenid times, as is testified by the donjon-like castles of Garri Kariz ...Missing: hill proto- motifs scholarly sources
  40. [40]
    BRONZES OF LURISTAN - Encyclopaedia Iranica
    Typical categories of canonical Luristan bronze artifacts include cast animal finials, standards with masters of animals, horse cheekpieces, and harness ...
  41. [41]
    [PDF] Pasargadae (Iran) No 1106 - UNESCO World Heritage Centre
    Jan 30, 2003 · Pasargadae was the first dynastic capital of the. Achaemenid Empire, created by Cyrus II the Great in the heartland of the Persians in the 6th ...
  42. [42]
    Ideas of Empire: The "Royal Garden" at Pasargadae
    Jul 29, 2013 · Established by Cyrus the Great (559–530 b.c.), Pasargadae was envisaged as a true imperial "capital" and symbolic heart of the Persian Empire.
  43. [43]
    Persepolis: The Audience Hall of Darius and Xerxes - Smarthistory
    Persepolis, the ceremonial capital of the Achaemenid Persian empire, lies some 60 km northeast of Shiraz, Iran.
  44. [44]
    [PDF] Assessment of structural components of Iranian heritage building
    Apadana is a large public hall with a capacity of 10000 people. 2.2 One Hundred Columns Palace. This palace is located in the east of Apadana yard, which is ...
  45. [45]
    Achaemenid Building Technology: The Key to a New Reading of ...
    Sep 1, 2022 · This brief historical overview highlights some of the problematic issues generated by the initial phase of archaeological surveys in Iran and ...
  46. [46]
    The reception of Egyptian culture by the Achaemenid Empire
    The text aims to detail Egyptian influences on the Persian palatial system across two historical periods. Achaemenid cultural reception involved extensive ...
  47. [47]
    [PDF] Parthian Brick Vaults in Mesopotamia, Their Antecedents and ...
    The Parthian remains at Assur in northern Meopotamia yielded many examples of the pitched brick vault. They are varied in their form and use, and give some idea ...Missing: squinch | Show results with:squinch
  48. [48]
    7 The Culture of Parthian Nisa between Steppe and Empire - DOI
    The cultural presuppositions behind the Round Hall may, in fact, be sought in two different directions since, if its circular configuration immediately recalls ...
  49. [49]
    Hatra - UNESCO World Heritage Centre
    Inside the temenos are seven temples and shrines, each of which is dedicated to a specific deity, and all have Iwans, open halls with high barrel-vaulted roofs ...
  50. [50]
    [PDF] Iranian and Hellenistic Architectural Elements in Chinese Art
    137 If in the case of a monster or lion mask we see a mixture of Chinese and Western motifs, in the case of other elements such as Corinthian capitals or a ...
  51. [51]
    Ctesiphon - The Metropolitan Museum of Art
    Jul 1, 2016 · Ctesiphon's strategic location as well as its political importance made the city an international trading and market center with a diverse population.
  52. [52]
    New historical records about the construction of the Arch ... - Journals
    Sep 22, 2021 · A piece of historical research about the construction of the ancient Arch of Taq-iKisra, part of the imperial palace of the Sasanian Empire in the city of ...
  53. [53]
    (PDF) Fire Altars and Fire Temples in the First Millennia BC/AD in ...
    5: An example of the basic plan of a Sasanian chahar taq and reconstitution of its elevation. Tureng Tepe, Gorgan, AD 7th century. (Boucharlat and Lecomte ...Missing: Rostam | Show results with:Rostam
  54. [54]
    The Sasanian Fire Temple of Gach Dawar in Western Iran
    Jan 20, 2019 · The discovery of a number of cult installations within the Chahar Taq explicitly indicates that the building was designed as a fire temple.Missing: scholarly | Show results with:scholarly
  55. [55]
    (PDF) And man created God? Kings, priests and gods on Sasanian ...
    Aug 6, 2025 · All investing authorities on the royal Sasanian reliefs are therefore commonly identified as Ahura Mazda. In view of conflicting historic ...
  56. [56]
    The Sasanian Rock Reliefs at Naqsh-i-Rustam and Naqsh-i-Rajab
    Nine reliefs are hewn into the rock below the royal tombs at Naqsh-i-Rustam; each relief is set in a rectangular recess. There is another group of four reliefs ...Missing: scholarly | Show results with:scholarly
  57. [57]
    https://journals.openedition.org/abstractairanica/40461
  58. [58]
    https://www.journals.uchicago.edu/doi/10.1086/716831
  59. [59]
    (PDF) From the Fire Temple to the Mosque: the religious urban ...
    Aug 6, 2025 · This paper is an analysis of the change in urban spaces in the former Sasanian empire after the Arab-Muslim conquest. How events shaped the ...
  60. [60]
    Iranian Studies 2
    The survey showed that the remains of the famous fire temple of Herat must have been converted to a Muslim shrine, the remains of the stone walls being squared ...Missing: Bishapur | Show results with:Bishapur<|separator|>
  61. [61]
    Masjed-e Jāmé of Isfahan - UNESCO World Heritage Centre
    Masjed-e Jāme is the oldest Friday (congregational) mosque in Iran, located in the historical centre of Isfahan.Missing: stucco mihrab hypostyle hall
  62. [62]
    The Great Mosque (or Masjid-e Jameh) of Isfahan - Smarthistory
    The Great Mosque of Isfahan in Iran is unique in this regard and thus enjoys a special place in the history of Islamic architecture.
  63. [63]
    (PDF) EARLY ISLAMIC ARCHITECTURE IN IRAN - Academia.edu
    The paper examines early Islamic architecture in Iran, focusing on the structural and stylistic elements of various mosques and tombs across the region.
  64. [64]
    Abbasid architecture - Discover Islamic Art | Artistic Introduction
    The minaret, minbar and mihrab become standard features in mosques. The relatively small dome located over the area in front of the mihrab, which first emerged ...Missing: adaptation | Show results with:adaptation
  65. [65]
    The Influence of Early Islamic Stucco Work in Iran on Anatolian ...
    Aug 6, 2025 · In this article, I want to dwell on the reflections of Abbasid stucco work on Anatolian Seljuk Art by way of Iranian Seljuk art.Missing: adaptation | Show results with:adaptation
  66. [66]
    [PDF] EARLY ISLAMIC ARCHITECTURE IN IRAN (637-1059) - ERA
    The main elements of the building-courtyard, īwān and dome chamber - show a ... decorative elements in the Iranian architecture in the early Islamic period.
  67. [67]
    https://www.archnet.org/sites/1665
  68. [68]
    Dynastic Politics and the Samanid Mausoleum - University of Michigan
    The richly textured surface and its amalgamation of royal Persian motifs hints at the local funerary tradition in a genre of architecture that was thoroughly ...
  69. [69]
    [PDF] A Study on Geometric Constructions on Brickwork Decorations in ...
    Thus, this research looks into the design methods of some distinguished brickwork decorations of Iranian architecture and explores their substructure of designs ...
  70. [70]
    Gonbad-e Qābus - UNESCO World Heritage Centre
    It is an outstanding and technologically innovative example of Islamic architecture that influenced sacral building in Iran, Anatolia and Central Asia.
  71. [71]
    (PDF) Study of geometry and proportions of north Iranian tomb-tower ...
    Study of geometry and proportions of north Iranian tomb-tower (Gunbad-e Qābus and Radkan-west) ... rows of inscriptions in brick-formed Kufic (Figure 2) [11].
  72. [72]
    Visual Arts: History of Iranian Tile - Iran Chamber Society
    History of tile (glazed brick), manufacture and decoration in Iran, goes back to the prehistoric period. It has an important position among the various ...
  73. [73]
    [PDF] Persian Tiles - The Metropolitan Museum of Art
    In the Islamic period of Persia tiles lavishly decorated the interior and exterior walls of religious buildings, imperial palaces, and residences of dignitaries ...Missing: kashi | Show results with:kashi
  74. [74]
    [PDF] The Architectural Characteristics of the Seljuk Domes in Isfahan‟s ...
    The construction of a dome over squinches was an impressive feature of Sassanid architecture; it became an inspiration for Muslim architects. André Goddard ...
  75. [75]
    The Role of Color in the Decoration of Tiling in Islamic Buildings of ...
    Aug 9, 2025 · In Seljuk era, Iranian artists decorated exterior parts of building with fine parts of turquoise ... Iranian Islamic Architecture in Seljuk Era, ...Missing: madrasas Khorasan courtyard scholarly
  76. [76]
    Archnet > Site > Masjid-i Jami' (Isfahan)
    Located in Isfahan, 340 km south of Tehran, the Friday Mosque of Isfahan is a prominent architectural expression of the Seljuk rule in Persia (1038-1118).
  77. [77]
    Madrasa-i Nizamiyya Khargird, Iran - Archnet
    One of the earliest madrasas built by Nizam al-Mulk, the Madrasa al-Nizamiyya stands in a solitary location near the village of Khargird.
  78. [78]
    Agzikara Han
    A description of the Agzikara Han. This site is dedicated to the 13th century building type of the han (caravansaray) of the Seljuk period of Turkey.
  79. [79]
    [PDF] a comparative study of the caravanserais in seljukian anatolia and ...
    This project compares Anatolian-Seljuk and Central Asian caravanserais, built for traders, pilgrims, and dervishes, to study their architectural relationship.Missing: bent | Show results with:bent
  80. [80]
    [PDF] Minaret and Archaeological Remains of Jam
    Jun 29, 2002 · The 65m-tall Minaret of Jam is a graceful, soaring structure, dating back to the 12th century. Covered in elaborate brickwork with a blue ...
  81. [81]
    The Art of the Ilkhanid Period (1256–1353)
    Oct 1, 2001 · During the Ilkhanid period, the decorative arts—textiles, pottery, metalwork, jewelry, and manuscript illumination and illustration—further ...
  82. [82]
    Soltaniyeh - UNESCO World Heritage Centre
    The Mausoleum of Oljaytu is recognized as the architectural masterpiece of its period and an outstanding achievement in the development of Persian architecture, ...
  83. [83]
    Tile with Image of Phoenix - The Metropolitan Museum of Art
    This image of a soaring phoenix with crested head and elaborate trailing plumage exemplifies the adaptation of Chinese imagery by Persian artists.
  84. [84]
    RABʿ-E RAŠIDI - Encyclopaedia Iranica
    Mar 28, 2016 · The largest one, Rabʿ-e Rašidi, was founded in Tabriz, on the north bank of the Mehrān River on the side of Mt. Sorḵāb. Although almost totally ...
  85. [85]
    The Mongolian Tent in the Ilkhanid Period
    Oct 1, 2003 · A Mongol royal tent was the epitome of luxury and allowed the ruler to reconcile semi-nomadic and sedentary lifestyles.
  86. [86]
    Techniques and Stylistic Characteristics of Stucco Decorations in ...
    Ilkhanid architecture occupies a distinctive position in the history of Islamic art through the development of highly elaborate stucco decoration.Missing: fresco legends
  87. [87]
    Bahram Gur in a Peasant's House - Smarthistory
    The Ilkhanid court commissioned luxury manuscripts as didactic works of art ... legends, and early history of Iran. We can interpret the text as a ...
  88. [88]
    Archnet > Site > Gur-i Amir
    Gur-i Amir, in Samarkand, Uzbekistan, is a mausoleum built by Timur as a resting place. It has a modified octagon shape and a bulbous ribbed dome.Missing: features | Show results with:features
  89. [89]
    Masjid-i Bibi Khanum Samarkand, Uzbekistan - Archnet
    The mosque occupied a space 109 by 167 meters, and consisted of an arcade, or riwaq, linking the iwans, four bays deep increasing to nine bays on the western, ...
  90. [90]
    Archnet > Site > Madrasah-i Ulugh Beg (Samarkand)
    A two-story envelope lines a rectangular site, marked by minarets on all four corners and a massive pishtaq facing the square. The pishtaq rises to twice the ...
  91. [91]
    http://www.sciencemag.org/content/315/5815/1106.full.html
  92. [92]
    ISFAHAN vii. SAFAVID PERIOD - Encyclopaedia Iranica
    Isfahan came under Safavid rule in 1503 following Shah Esmāʿil's defeat of Solṭān Morād, the Āq Qoyunlu (q.v.) ruler of Erāq-e ʿAjam, near Hamadān. No ...
  93. [93]
    Safavid {1501-1722} - Archnet > Collection > Timeline
    The main characteristics of this architecture was the layout and planning with the mosques built at a deliberate angle to the maidan to show off both their ...Missing: Naqsh- e Jahan
  94. [94]
    Archnet > Site > Maydan-i Imam
    The maydan, or public plaza, is an eight hectare space constructed under Shah Abbas I between 1590 and 1595 for state ceremonies and sport.
  95. [95]
    ISFAHAN x. MONUMENTS - Encyclopaedia Iranica
    The magnificent architecture of Isfahan soon gained the city the honorific title of “Isfahan, half the world” (Eṣfahān, neṣf-e jahān; Eskandar Beg, p. 544) ...
  96. [96]
    Masjid-i Shaykh Lutfallah Isfahan, Iran - Archnet
    The Shaykh Lutfallah mosque, built in 1617-18, is located at the center of the east side of Isfahan's maydan, or grand royal square (512 by 159 meters).
  97. [97]
    Geometrical analysis of architecture of Sheik Lotfollah Mosque to ...
    The Mosque was built in Naghsh-e Jahan Square by the well-known Iranian architect of the time, Mohammad Reza Isfahani and on the order of Shah Abbas, the First.
  98. [98]
    Ali Qapu Isfahan, Iran - Archnet
    The building is at heart a monumental gatehouse, originally conceived as a two-story atrium communicating between the public maydan and semi-private dawlat- ...Missing: e | Show results with:e
  99. [99]
    Acoustic investigation of architectural spaces with an emphasis on ...
    Jun 5, 2023 · The rooms of Ali Qapu palace, which were a place for public and special entertainments and receptions, showed a wide pavilion of Tongbori arrays ...Missing: talar | Show results with:talar
  100. [100]
    Chahar Bagh Isfahan, Iran - Archnet
    Chahar Bagh is the main boulevard of Isfahan, Iran. It was built as a part of a larger urban project undertaken between 1596 and 1597 by the Safavid Shah Abbas ...
  101. [101]
    https://www.archnet.org/sites/1620
  102. [102]
    (PDF) Evolution of Persian Traditional Architecture Through the History
    Persian architecture transitioned from stone and mud bricks used in Northern Iran 7,000 years ago to advanced composite materials like reinforced concrete, ...<|control11|><|separator|>
  103. [103]
    Snapshots: A Trip to Iran with The Met
    Jan 25, 2018 · Our final stop, Shiraz, was the 18th-century capital of the Zand dynasty. ... Interior view of Vakil Mosque, Shiraz, with columns. Vakil Mosque ...
  104. [104]
    Golestan Palace - UNESCO World Heritage Centre
    The characteristic architectural structures of the Qajari era retain authenticity in design and layout and have preserved the exceptional interior and exterior ...Gallery · Maps · Indicators
  105. [105]
    A Qajar Ceramic Tile with Safavid Scene - Isabelle Imbert
    The scene depicted reproduces in part the Reception of Vali Muhammad Khan by Shah 'Abbas I, painted on the northeast wall of the reception hall of the Chehel ...Missing: cartoons | Show results with:cartoons
  106. [106]
    Urban Change in Iran, 1920-1941 - jstor
    First, they are a decisive break with the past in that traditional urban growth was directed towards new-nodern and. Westernized-forms of development. Second, ...
  107. [107]
    DOMES - Encyclopaedia Iranica
    Dec 15, 1995 · The dome on squinches first appeared in Persia in the Sasanian period in the palace at Fīrūzābād in Fārs and at nearby Qalʿa-ye Doḵtar, both ...
  108. [108]
    from rags to riches: the development of the zone of transition in ...
    1 The Islamic architecture of Iran is basically curvilinear. This means that it is essentially an architecture of vaults and domes, most particularly the latter ...
  109. [109]
    Squinch and Pendentive – Khamseen
    “The Muqarnas Dome: Its Origin and Meaning.” Muqarnas 3 (1985): 61–74. Citation: Patricia Blessing, “Squinch and Pendentive,” Khamseen: Islamic Art History ...Missing: evolution | Show results with:evolution
  110. [110]
    SALJUQS vi. ART AND ARCHITECTURE - Encyclopaedia Iranica
    Examples are preserved or can be reconstructed in the Friday mosques of Isfahan, Qazvin, Sāva, Gonābād, on the Emām Ḥasan mosque in Ardestān (Godard 1936, p.
  111. [111]
    Discontinuous Double-shell Domes through Islamic eras in the ...
    Feb 5, 2010 · This paper presents a developed geometric approach for deriving the typologies and geometries of discontinuous double-shell domes in Islamic architecture.
  112. [112]
    Dome - New World Encyclopedia
    A dome (from Latin domus) is an architectural element similar to the hollow upper half of a sphere. There is significant overlap with the term cupola, ...
  113. [113]
    ARCHITECTURE iii. Sasanian Period - Encyclopaedia Iranica
    Sasanian architecture is characterized by the widespread use of mortar masonry and the associated vaulting techniques. Although mud brick had been developed ...
  114. [114]
    [PDF] From earth to dome - Houda Kassatly - Arcenciel
    Nov 19, 2019 · of brick cupolas. The lack of timber on the Iranian plateau imposes the use of brick vaults and cupolas for all types of buildings, both ...
  115. [115]
    [PDF] construction of history: - and monumental architecture of tehran
    This Master's thesis focuses on modem Iranian national/revival architecture under the Pahlavi royal dynasty, in particular the reigning period of Mohammad-Reza.
  116. [116]
    SYMBOLS ASSOCIATED WITH TEMPLES AND ALTARS IN THE ...
    The study interprets symbols of temples and altars from the 3rd millennium BCE to AD centuries. Cylinder seals depict deities, their abodes, and rituals, ...
  117. [117]
    The Impact of Iwan as a Traditional Shading Device on the Building ...
    Commonly, the height of an Iwan equals the height of a building roof and it has a depth of 1–2 m.Missing: proportions drama Persian
  118. [118]
    [PDF] Comparative Comparison of Iwan Proportions in Safavid Mosques of ...
    Jan 21, 2024 · This research compared the geometrical proportions of Iwans in seven mosques as targeted samples. The mosques of the. Safavid period of Isfahan ...Missing: depth- acoustic drama
  119. [119]
    https://www.iranicaonline.org/articles/architecture-v/
  120. [120]
    MINARET - Encyclopaedia Iranica
    In comparison with Turkish minarets, especially of the Ottoman period, Iranian minarets have small domes above them, rather than the pointed towers seen in ...<|separator|>
  121. [121]
    ARCHITECTURE v. Islamic, pre-Safavid - Encyclopaedia Iranica
    The beginnings of an Islamic architecture in Iran are still almost impossible to identify properly. Remaining monuments are few, most of them are very ...Missing: scholarly | Show results with:scholarly
  122. [122]
    [PDF] SAFAVID ARCHITECTURE*
    No other Persian mosque has a double dome c. 52 m. high. (some 14 m. above the inner dome), and the broad court, nearly 70 m. across, was a device ...
  123. [123]
    CARAVANSARY - Encyclopaedia Iranica
    The normal caravansary consisted of a square or rectangular plan centered around a courtyard with only one entrance and arrangements for defense if necessary.Missing: bent | Show results with:bent
  124. [124]
    https://whc.unesco.org/uploads/nominations/1397.pdf
  125. [125]
    Safavid Isfahan: urbanism, monuments and urban life
    Isfahan: Architecture and Urban Experience in Early Modern Iran. University Park, Penn State University Press. Gaube, Heinz. 2008. Iranian cities. Salma ...
  126. [126]
    [PDF] In the name of GOD - UNESCO World Heritage Centre
    ... dome is considered as one of the first specimens of buildings in which both Naskh and Kufic scripts are seen side by side in its inscriptions. The east and ...
  127. [127]
    https://actual-art.org/files/sb/12/Zagirova.pdf
  128. [128]
    Muqarnas, an introduction – Smarthistory
    ### Summary of Muqarnas Stalactite Patterns in Stucco for Niche Decorations in Iranian Architecture
  129. [129]
    [PDF] The Lotus in Central Asia: A Sassanian Motif in the Islamic Stucco ...
    In this study, I attempt to make a brief overview of the history of the Sassanid Lotus image in the stucco décor of pre-Mongolian Central Asia and to trace how ...
  130. [130]
    [PDF] Explaining the Role of Nazi Architecture in the Architecture of Iranian ...
    Apr 21, 2021 · The first constructed building with reinforced concrete in Iran is the railway station of Tehran which was designed and constructed by. Philipp ...
  131. [131]
    ARCHITECTURE vii. Pahlavi, before World War II
    Most were unprepossessing: plain brick walls, square window openings, and fairly steeply sloped tin roofs. Tehran was to be more elegant than the provincial ...Missing: era | Show results with:era
  132. [132]
    [PDF] Three Proposals for a New Urban Center in Tehran (1966-1976)
    Planned to house a modern neighborhood, the hilly part of the site was intended to become “a symbol of modern urbanism.” But the government had higher ...
  133. [133]
    A modern mosque without minarets stirs controversy in Tehran | Iran
    Oct 23, 2017 · It was “an insulting, postmodern design” that is “empty of any meaning”, it said. The mosque was due to be officially inaugurated this summer, ...
  134. [134]
    The Grand Mosalla of Tehran - Contemporary Architecture of Iran
    May 1, 2020 · Name: The Grand Mosalla of Tehran (Imam Khomeini Mosalla) Location: Tehran, Iran Architect: Parviz Moayyed Ahd Date: 1985 - Type: Religious Status: Under ...Missing: 1979 mosque modesty
  135. [135]
    [PDF] Architectonics in Pre- and Post-revolutionary Iran - sahanz
    Through the departure of Shah on January 16, 1979, and the return of Ayatollah Khomeini, the leader of the revolution who had been in exile for fifteen years,.Missing: modesty Imam Musalla
  136. [136]
    [PDF] Road, Housing & Urban Development Research Center Publications
    Earthquake Resistance of Buildings With Rubber. Bearings (Digital) ... Architectural Design Guide of Residential High-Rise Buildings. Architecture ...
  137. [137]
    https://www.mdpi.com/2673-4060/2/2/15
  138. [138]
    US says more construction materials fall under Iran sanctions | Reuters
    May 21, 2025 · People or entities that provide Iran with certain construction-related materials will face sanctions after the Trump administration said it ...
  139. [139]
    Have International Sanctions Impacted Iran's Environment? - MDPI
    This study provides the first extensive overview of the unintended environmental impacts of international economic sanctions on Iran.
  140. [140]
    ART IN IRAN ix. SAFAVID To Qajar Periods - Encyclopaedia Iranica
    The anonymity that had characterized earlier Iranian art was largely abandoned architectural inscriptions were signed; manuscripts bore the names of ...
  141. [141]
    About - Hadi Teherani
    Functionality, efficiency and sustainability are essential to our work. We expand on these foundations to create long-term usability that is based on emotional ...
  142. [142]
    Take it to the bridge: the Tehran architect striking the right chord in ...
    Apr 20, 2015 · Leila Araghian was 26 when she came up with Tabiat bridge. Five years on, the 270-metre structure is a reality, despite sanctions, garnering awards.
  143. [143]
    Iran (Islamic Republic of) - UNESCO World Heritage Convention
    Iran (Islamic Republic of) · Meidan Emam, Esfahan. 2025 · The Persian Caravanserai. 2025 · Trans-Iranian Railway. 2025 · Trans-Iranian Railway. 2023 · Meidan Emam, ...National Cultural Heritage Laws · Documents · International assistance
  144. [144]
    Iran (Islamic Republic of) Documents - UNESCO World Heritage ...
    2025, Decision, 47COM 8B.17. Prehistoric Sites of the Khorramabad Valley (Islamic Republic of Iran). logo. Committee sessions Statutory Documents Committee ...<|control11|><|separator|>
  145. [145]
    Meidan Emam, Esfahan - UNESCO World Heritage Centre
    It is one of the largest city squares in the world and an outstanding example of Iranian and Islamic architecture. Built by the Safavid shah Abbas I in the ...Missing: Encyclopaedia Iranica