Valuable collections on various themes are gathered in Köthen Castle, which can now be experienced in a spectacular way: Five historical figures show the visitor their treasures, films and games complement the 3D exhibits. In the individual chapters one learns interesting and amazing facts about prehistory and early history, about the language reform of the fruit-bearing society, the baroque music of the composer Johann Sebastian Bach, the health theory of homeopathy and the ornithology of the oldest ornithological museum in Europe. With the help of markers, you can call up the individual objects and figures in the rooms of the exhibition, and when you touch the screen, they reveal their secrets. A small castle ghost is omnipresent as a contact for the youngest visitors, maps show the location of the place in the world ... a wealth of access points that, with the help of augmented reality, turn the castle into a unique adventure space.