Książ Castle is especially interesting as it joins older history, as the construction started in the 13th century, and more recent history as it was largely changed during WWII. If you enjoy conspiracy theories of the human civilization, there is no other such place like Książ as digressions about Hitler purposes for Książ are numerous. During sightseeing of the castle, you will be able to see lots of alternations introduced by Nazi Germans. Apart from the Castle itself it is worth to stroll in the Książ gardens designed in French style and also to visit palm house nearby. Sightseeing of the castle takes about 2 h.