Originally a citadel, built in the 14th century for Bishop Arnošt of Pardubice, newly fortified in the early 15th century by Zbyněk Zajíc of Házmburk. Desolated in 1576, renovated in 1670 and enlarged into a chateau. Since the mid-19th century the seat of the Mining academy. The residential palace of the Gothic citadel with a bay has preserved.