Churches in Istanbul

Bulgarian St.Stephen Church or Bulgarian Iron Church is an Orthodox Church in Balat belonging to the Bulgarian minority community in the area. This is one of the least visited churches in Istanbul. It was constructed during the 19th century following a Bulgarian nationalist movement. It was closed in 2011 and reopened to the public in 2018 after a large-scale renovation. Showcasing both neo-Byzantine and neo-Baroque architectural influences, the building is made up of cast iron.

St.George's Cathedral is an Eastern Orthodox church situated in Fener in the Fatih district of Istanbul. Commonly known as Patriarchal Church of the Great Myrrh, it was constructed as a dedication to the Christian martyr, Saint George. It has been the seat of Ecumenical Patriarchate of Constantinople since 1600 and though it is a relatively smaller church, it is in no way lacking beauty and grandeur. The interior of the church house a fragment of the Pillar of the Flagellation.

Sent Antuan Kilisesi or St. Anthony of Padua Church is a basilica and church located in the Beyoğlu district. It is the largest Roman Catholic church in Istanbul and one of the three Levantine parishes in the area. It is famous for its unique architecture, which includes a gilded wooden statue of St. Anthony by Luigi Bresciani and mosaics depicting the Baptism of the Lord.

Pammakaristos, now the Fethiye Mosque, stands in the Carsamba quarter of Fatih and holds the third-largest set of Byzantine mosaics in the city after Hagia Sophia and Chora. They fill the parekklesion, the side chapel added around 1310, which has served as a museum since 1949. That chapel is shut for renovation at present, so the mosaics cannot be seen.