Hasankeyf Castle
Hasankeyf Castle was built by the Byzantines A.D. It was built in 363. It was the center of the Syriac diocese at that time. The Byzantines used this castle for 300 years and then; It came under the auspices of the Abbasids, Marwanids and Hamdanids. Hasankeyf Castle is 200 meters above the Tigris River.
