Castle (stone) is situated on a mountain of volcanic origin, height 68 m. On the grounds of the castle is Mukachevo Historical Museum. The total area of ​​14 thousand square meters of the castle. meters and consists of three parts - Upper, Middle and Lower castles. The oldest - the Upper Castle (XIV-XVI cent.) - Located on the top of the mountain; average (XVII cent.) - On the terrace, at 6 feet below the Lower castle (XVII cent.) - A further 10 meters below. Castle complex in terms of a few elongated beveled rectangle. He is surrounded by dry moats all 10.12 m deep and the stone walls of 3-3.5 meters thick. The castle hosts eight bastions built in the XVII century, located on the bastions before the artillery. In the XIII century castle in the XIV was the property of the Hungarian kings and kings Arpadovichey Anjou - Charles Robert, Louis the Great, Elizabeth of Anjou. But at the end of the fourteenth century Palanok got a new owner - he was a relative of the Hungarian King Zsigmond, Podolski, Prince Fedor Koryatovicha. With Koryatovicha a new era of existence Mukachevo castle. A radical restructuring of existing buildings and new construction of the fortress. Palanok began to carry not only the defense function, but also housing. The corners of the protective wall was erected cylindrical towers (three of them have survived). At the time of Prince Koryatovicha castle occupied only the upper terrace of the Castle Mountains. The mountain itself was surrounded by a moat and a water oak palisade - Palanca. Then the castle got its present name. For a long time was Palanok mayoratnym castle of the Hungarian crown. But the period of the power of the Kingdom of Hungary ended in 1526. Owners Palanca began to change very often. They were family-Rakoczy, the Austrian Leopold II. In the 90 years of the XVIII century it was transformed Palanok in prison. He became one of the most severe political prisons of Austria-Hungary.