Seljuk architecture

fortress in the city of Diyarbakır, Turkey

mausoleum in Merv, Turkmenistan

style of Persianized architecture

twin towers in Avaj County, Iran

carved figures from the Seljuk Empire

thumb|right|Banna'i brickwork in the [[Mausoleum of Khoja Ahmed Yasavi. The blue brickwork spells out the names of Allah, Muhammad and Ali in square Kufic calligraphy.]] In Iranian architecture, '''banna'i''' (, "builder's technique" in Persian) is an architectural decorative art in which glazed tiles are alternated with plain bricks to create geometric patterns over the surface of a wall or to spell out sacred names or pious phrases. This technique originated in Syria and Iraq in the 8th century, and matured in the Seljuq and Timurid era, as it spread to Iran, Anatolia and Central Asia.

Historic shrine

imamzadeh in Kashan, Iranian national heritage site

mausoleum in Torbat-e Jam, Iranian national heritage site

mausoleum in Hamadan, Iranian national heritage site

madrasa in Kırşehir, Turkey

mausoleum tower in Abarkuh, Iranian national heritage site