The Hagia Sophia
The Hagia Sophia has a very interesting history. The chapel was originally built by Constantine the Great in 360 B.C.E., burned down in a riot, rebuilt in 415 B.C.E., burned down again in 532 B.C.E., and rebuilt for the last time in 537 B.C.E.. It remained a church for around 900 years, setting the scene for the violent separation between the Roman Catholic and the Greek Orthodox churches in 1204 B.C.E.. It was converted into a mosque by the Ottoman Empire in 1453 B.C.E.. In 1943, the Turkish government decided that it was time for the Hagia Sophia to go into retirement as a museum after noticing that the historic building was starting to fall apart in dangerous ways. It has been under heavy repair work ever since.