In a former Ursuline convent houses the Haus der Natur (natural history Museum). The Museum exposition is presented thematically. Sea world is a giant aquarium, which recreates various habitats of sea creatures. "Reptile zoo" – the 33 aquarium with various representatives of the serpent world. Other halls are called "Man and animals in fairy tales and myths", "Space", "Forest animals", etc. There is even a room with equipment for gold mining and collection of gemstones and minerals.