Istanbul’s Aya Sofya (also known as Hagia Sophia) was an Orthodox patriarchal basilica, that would later become a mosque, and is now a museum. Its complex history as one of the world’s greatest cathedrals, and then later as a mosque makes it a fascinating place to visit.

Main Dome, Aya Sofya, Istanbul, Turkey

Aya Sofya, Istanbul, Turkey

Deësis mosaic, Aya Sofya, Istanbul, Turkey

Aya Sofya, Istanbul, Turkey