ORTAKOY MOSQUE : was built by (Armenian Architect) Nigogos BALYAN. in Baroque-style for Sultan Abdulmecit, between in Istanbul. Nigogos new desing was tried in This Mosque and Dolmabahce Mosque.
Now a museum, the Aya Sofya was a religious centre for Istanbul and the wider world for more than years. It began as a church in 537 under the reign of Byzantine Emperor Justinian I and was.