A HoloLens app to augment the city model of munich at the lobby of the Stadtmuseum Muenchen built together with Frank Groh. By focusing on the individual marked buildings, the user can call up information on the history of the building in the form of text and voice recordings. Although the HoloLens technology is still very prototypical, location-based holograms can already work well in the museum context and tempt the user to interact playfully with the exhibits.