The Walled city of Jajce is a medieval fortress with long defensive walls and a large citadel, situated in Jajce, Bosnia and Herzegovina. It constituted the fortified capital of the Bosnian Kingdom. The fortress was built on the top of a hill, surrounded by a small settlement on the eastern slopes, at the end of the 13th and beginning of the 14th century. It was repaired, rebuilt and enlarged many times since, until it encompassed the entire settlement underneath with its large walls. The fortress became a citadel which covers an area of 11,200 square metres (121,000 sq ft). The combined length of the walls is 1,300 metres (4,300 ft). The whole area is geographically and historically interesting.