About 12 km notheastern from Postojna is situated Predjamski grad (The Jama (cave) Castle). It is one of the most visited castles in Slovenia. Castle was built-up into the ovehanging rock and vista to that combination of a nature and man work is really great. Walk throug the castle halls is an unique event. Very realistic man size dummies are presenting ancient life of the castle. There is also a museum collection and ancient armoury. Below the castle is Jama pod Predjamskim gradom (Cave under the Castle) where use to be horse studs. The castle was first mentioned in 1274.