Hagia Sophia

    The building, which was built in 537, is located in Sultanahmet Square. Hagia Sophia, the most magnificent Byzantine artifact in Istanbul built during the reign of the Eastern Roman Empire, belongs to the First Justinian period. The thin stone minaret was built by Bayezid the 2nd. The thick stone minarets were added by the architect Sinan. The tombs of Selim the 2nd, Murad the 3rd and Mehmed the 3rd are in its garden.