Aya Sophia (Hagia Sophia) is the former Greek Orth...

Aya Sophia (Hagia Sophia) is the former Greek Orthodox zchristian partiarchal cathedral and latter became an Ottoman imperial mosque. Today is a museum. Built in 537 AD and it was famous for its massive dome . Also it was the world's largest building. The construction consists of mostly masonry. Inside you may see both Islamic and christians arts.