Kermanshah, the capital of Kermanshah Province, is located 525 kilometres from Tehran in the western part of Iran. According to the 2011 census, its population is 851,405. People mostly speak Southern Kurdish. Kermanshah has a moderate and mountainous climate. Kermanshah is the largest Kurdish-speaking city in Iran.
Bisotun is located along the ancient trade route linking the Iranian high plateau with Mesopotamia and features remains from the prehistoric times to the Median, Achaemenid, Sassanian, and Ilkhanid pemore