Hagia Sophia: Architectural intersection of Christianity and Islam

The Hagia Sophia in Istanbul serves as a monumental architectural intersection of Christian and Islamic history. Originally commissioned by Byzantine Emperor Justinian I and completed in 537, the structure was designed by Anthemius of Tralles and Isidore of Miletus. The building is characterized by its massive central dome, which rests upon a rectangular base and utilizes semi-domes and arcades to distribute weight.

Following the Ottoman conquest of Constantinople in 1453, Sultan Mehmed II converted the cathedral into a mosque, adding new layers of religious decoration. While it later functioned as a museum, the site currently serves as a mosque. The interior features a complex blend of Byzantine mosaics, marble panels, and Islamic geometric and floral motifs, with a ring of windows at the base of the dome providing natural light to the vast space.