The symbol of the castle is the stone defensive tower made of irregular blocks. It guarded the trade route to Hungary, the so-called Hungarian Tract. It is a renovated and very well maintained medieval castle. It was closed to tourists for many years and it was only after many years that the decision was made to renovate it. The medieval castle dates back to the reign of King Wenceslaus of Bohemia (1292–1305). At that time, at the turn of the 13th and 14th centuries, the oldest masonry element – the tower, 28 metres high – was built. The castle was built during the reign of King Władysław Łokietek. The tower was surrounded by a stone wall with an entrance gate on the town side, and a two-room building with cellars was erected on the opposite side. The building was depicted on the 14th-century city seal. In the 15th century, the castle was expanded and strengthened, but by the following century it had already been largely destroyed during military actions. Although the last king of Poland ordered the castle to be rebuilt, this did not come to fruition due to the collapse of the First Polish Republic. Restoration work began in 1928, with further work not starting until 1993.