The Kariye Mosque, or the Church of the Holy Saviour in Chora, is a medieval Greek Orthodox church used as a mosque today in the Edirnekapı neighborhood of Istanbul, Turkey. The neighborhood is situated in the western part of the municipality (belediye) of the Fatih district. The Church of the Holy Saviour in Chora was built in the style of Byzantine architecture. In the 16th century, during the Ottoman era, the Christian church was converted into a mosque; it became a museum in 1945, but was turned back into a mosque in 2020 The interior of the building is covered with some of the oldest and finest surviving Byzantine Christian mosaics and frescoes; they were uncovered and restored after the building was secularized and turned into a museum.
