The Hagia Sophia Was a Cathedral, a Mosque and a Museum. It’s Converting Again. July 22, 2020 Byzantine Civilization IFTTT +7 Historic Buildings and Sites Monuments and Memorials (Structures) NYT NYTimes Opinion Ottoman Empire Politics and Government World Heritage Sites Byzantine Civilization IFTTT Historic Buildings and Sites Monuments and Memorials (Structures) NYT NYTimes Opinion Ottoman Empire Politics and Government World Heritage Sites