Rank #40
Hagia Sophia / Historic Areas of Istanbul
cultural
6th-century Byzantine basilica → mosque → museum → mosque, plus Topkapı, Süleymaniye, Hippodrome. Inscribed 1985.
From Wikipedia
The Historic Areas of Istanbul are a group of sites in the capital district of Fatih in the city of Istanbul, Turkey. These areas were added to the UNESCO World Heritage List in 1985.