The Palanok Castle is a historic castle in the city of Mukachevo in the western Ukrainian oblast (province) of Zakarpattia. The Palanok Castle is delicately preserved, and is located on a former 68 meter high volcanic hill. The castle complex consists of three parts: the high, middle, and low castle. The total area of the castle is 14,000 mē. The castle consists of 130 different rooms with a complex system of underground passages connecting them together. The castle currently houses a museum dedicated to the history of Mukachevo and the castle.