Tigris River (Tigri)

This historical river mentioned in the Book of Genesis is a must-see place with its natural beauty. Its length is 1900 km, with 523 km of it in Turkey. Surrounded by four countries (Iran, Iraq, Turkey, and Syria), the Tigris River is the second largest river in western Asia. With the Euphrates, it makes up a river system that borders Mesopotamia in the area known as the Fertile Crescent. An important source of both travel and irrigation, the Tigris also has a rich history that dates back to the earliest known civilizations because of its importance to a largely arid region.

The fortress is a historical one. It consists of an inner fortress and an outer fortress. It has four main gates that are called Dag gate, Urfa gate, Mardin gate and Yeni gate. The walls come from the old Roman city of Amida and were constructed in their present form in the mid-fourth century AD by the emperor Constantius II.