ST Antuan Churc
Hagia Sophia is the former Greek Orthodox Christian patriarchal cathedral, later an Ottoman imperial mosque and now a museum in Istanbul, Turkey. Built in 537 AD at the beginning of the Middle Ages, it was famous in particular for its massive dome.
St. Eirene Church
Sultanahmet, Historical Peninsula The 4th century St. Eirene Church, also known as Hagia Eirene Church is located in the 1st court of the Topkapi Palace on the Historical Peninsula. After the restoration it has been used for cultural activities and exhibitions.
St. Pierre Church
St. Pierre Church in Karakoy, Galata The St. Pierre Church is located down the Galata Tower in Karakoy. The church was built in 1841 and built in basilica style with its four sided altar. The blue dome above the chorus stage is decorated with golden gildings.
Armenian Patriarchate in Kumkapi The Istanbul Armenian Patriarchate is one of the 4 hierarchical centers of Armenian Churches with ones in Jerusalem, Erivan and Beirut. It is located in Kumkapi, about 20 mins from Hippodrome.