Hasankeyf

The importance that Hasankeyf once held can be gauged by the size this bridge must have had, dating from a period before Ottoman rule. Strategically, with the extremely sheer cliffs and fortifications thereon, and the easily defended cave city (not visible in this photo), it was surely a city in a place to control, or at a minimum monitor, the flow of traffic up and down the Tigris River. A precariously positioned watch tower can be seen, looking ready to topple off the cliff top.