Ulu Mosque (Center): It is known as fifth Harem-i Şerif in Islamic world. After the conquest of Diyarbakır by Islamic armies, the biggest Christian temple of the city, Mar-Tama church had been converted into a mosque in 639. It was repaired in 1091 during Great Seljuk Sultan, Melikşah period. The mosque which was repaired with the aids of the public in 1240, had been greatly demolished due to the earthquake and fire. This initial Islamic structure, which has a great value in connection with inscriptions of various periods and şadırvans on its courtyard, was constructed with black stones.

Anatolian oldest mosque, Ulu Mosque, still draws attention today as a monumental structures group with surrounding two theology schools and other structures. In connection with its plan, it is similar to the Ummiye and Emevi mosques, constructed in between 705 and 715.