The Castle Hill in Cieszyn, located on the Olza river, is a small hill with steep slopes, situated in the center of Cieszyn. There are a few historic buildings worth mentioning on the hill, among others, remains of the ducal castle, a Romanesque rotunda of Saint Nicolas and a Classicist palace of the Hapsburgs. Besides the monuments, there is a romantic park with trees, which some of them are monuments of nature.