Church of Saint Catherine
The Church of Saint Catherine is a Byzantine church from the late 13th century. The building was originally intended to be a church for the Christós Pantodýnamos Monastery. Under Bayezid II (1481 - 1512), it was transformed into a mosque. A restoration took place from 1947 to 1951. Since 1988, it has been listed as a UNESCO World Heritage Site among "Paleochristian and Byzantine buildings of Thessaloniki".