Emperor Justinian founded the Greek Orthodox Church, also known as the Church of Divine Wisdom, in the third century. In 1453, Sultan Mehmet II The Conqueror transformed it into a mosque. Ataturk built a museum there in 1935, and Recep Tayyip transformed it into a mosque in 2020. Erdogan. For a millennium, it was the biggest church on earth. The Sultan Ahmet, the Blue Mosque Mosque with 20,000 blue Iznk ceramic tiles known as the "Blue Mosque." It was designed for The last magnificent mosque built by Mehmet, the architect of Sultan Ahmet I, with six high minarets. the Classical era. Due to Friday prayers, we enter The Blue Mosque from the outside every Friday.