Hagia Sophia (Ayasofya-i Kebir Camii)

Hagia Sophia was consecrated in 537 as the patriarchal cathedral of Constantinople under Justinian, an engineering leap with its floating dome that defined Byzantine architecture. After the Ottoman conquest of 1453 it became the city's principal imperial mosque, its mosaics gradually covered and its minarets added around the great dome. The Republic turned it into a museum in 1935, a decision that made its interior accessible to the world for 85 years, and in July 2020 a Turkish Council of State ruling annulled the museum status and it returned to use as a mosque, now formally named the Hagia Sophia Grand Mosque, administered with the Presidency of Religious Affairs.

Visiting today is a mosque visit. The official schedule admits visitors from 9 to midnight with pauses for cleaning and prayer, entry is free, and the mosque's own site claims around 35,000 people a day. Tourists enter through a separate gate, women cover their hair, and modest dress is enforced; the prayer hall's arrangement differs from the museum era, and what of the mosaics and the building's Christian furnishings can be seen changes with it. The honest frame holds all three eras at once: a Byzantine cathedral, an Ottoman mosque, a Republican museum, and a mosque again, each layer real and each with its own community attached, and a building that has been many things without stopping being any of them entirely.

Visiting

The mosque's official site carries visiting hours and rules: free entry, 9:00 to midnight outside cleaning and prayer pauses, tourists via the visitor gate, women cover their hair, modest dress.

Photo: Alvesgaspar, CC BY-SA 4.0, via Wikimedia Commons ([source](https://commons.wikimedia.org/wiki/File:Hagia_Sophia_Istanbul_July_2022-2.jpg))