Adiyaman (153 km northeast of Gaziantep) the Archaeological Museum houses regional finds from the Lower Firat which date from the Neolithic and Chalcolithic ages. Good quality kilims woven in bright colours sell for reasonable prices in the bazaar. Surrounding monuments include the ruins of an Abbasid citadel (restored by the Seljuks) and the 14th century Ulu Mosque.
The discovery of oil in the region has brought prosperity to Adiyaman. 5 km to the north is Pirin (Perre), that boasts a large Roman necropolis dug out of the rock and soil. Adiyaman, as well as Kahta (which also has good accommodation and camping facilities), make good bases from which to visit Nemrut Dagi (Mt. Nemrut) National Park.
You can hire transportation in either town. On the summit of Nemrut Dagi, at 2,150 meters the highest mountain in Northern Mesopotamia, sits the gigantic funerary sanctuary erected in the first century B.C. by King Antiochos I of Commagene.
The engineering involved continues to amaze visitors seeing for the first time the artificial tumulus as it is flanked by terraces on which rest the colossal statues of Apollo, Zeus, Heracles, Tyche and Antiochus. Time has inflicted heavy damage on the sculptures their torsos sit with their beautifully carved heads at their feet.