This Crusader Castle in Karak is one of the largest castles built in this Middle East. It's a place of the battles between the Crusaders and Muslim leader, Salah ad-Din, during the 12th century.
The castle is also famous for its underground tunnels and prison cells. There is a small museum built beside the castle, offering the information and history about the Karak region and the castle. The entrance fee is free for the Jordanians and persons with the residency, and one dinar for foreign visitors.