Diyarbakir (IV c. B.C/III c. A.D., X-XIII cc., XIV c.) is an ancient and medieval urban site about 90 km to the west of Dashoguz. It represents a rectangle (250x200 m) in plan surrounded with the walls having an inner fire corridor and semi-oval towers.

700 m eastwards from the site are the remains of an interesting object, supposedly a caravanserai and bazaar from the period of the Khorezm Empire. It is square in plan (200x200 m) and consists of four courtyards encircled with rooms and iwans. By size Diyarbakir reminds of nearby Shahsenem.