The Diyarbakir Ulu Cami, or Great Mosque, is one of the oldest mosques in Turkey and greatly respected because of its representation of ancient Mesopotamia. Originally constructed in 639, ancient materials were used in its 1092 restoration and renovation. The mosque spans 80 x 80 meters and was impressively constructed from cut stone. Prominent features of the Ulu Mosque are its rectangular minaret, its decorated walls and the fountain dating from 1849.