This province is one of the most important habitats of Median tribes and an important centre on the silk route. The area had a major prominence to the Sassanid dynasty and hence hosts a number of important Sassanid monuments including Taq-i_Bustan, Bistoun and Anahita Temple.
During World War !, the area was occupied by Ottomans and Allies for some time.
The province has a border with Iraq to its west and surrounded by Kordestan, Hamadan, Lorestan and Ilam provinces. The province is located on north-western skirts of Zagros mountains.
Kermanshah lies between the Persian plateau and Mesopotamia. It has cold weather in its mountainous areas and warm weather in its low lands. The best time to visit this province is spring and summer.