Hagi Sophia is one of the most significant works of world architecture history. It had been built during the era of emperor Justinyen between the years 532-537. Hagi Sophia which was converted in to museum in 1935 had served as church for 916 years and mosque for 481 years. Hagi Sophia which is one of the most significant structures contained in World historical inheritances is called as 8th wonder of the world since it is being engineering and architecture wonder. Hagi Sophia which is the first domed church of the world has the 4th biggest dome still after St. Peter in Rome, St. Paul in London and Doumo in Florence. Its inside was decorated with marble columns and golden mosaics