The exhibition "Multiple City" shows current urban developments worldwide as mirrored in central urban concepts of the past 100 years. Their juxtaposition and inter-relationship with leading historical and contemporary ideas illustrates and explains the complex and multi-layered developments of urban development. Exhibits span the years from the garden city at the beginning of the 20th century through the city landscape concepts of the early post-war period to todays urban landscapes, from the idea of the functional city in early modern times to the patchwork city with functional zones or from the leading ideas of a mobile city to a modern "telepolis". Thirteen leading ideas allow us to experience urban development as a stimulating discourse in which we are all involved. Original plans and models document historical city concepts, while current changes to urban spaces are presented in artistic-documentary works such as photographs and animated films. In the exhibition, publications, discussions and a series of films, urban planners, architects, artists and scientists debate issues of the contemporary city in its multiple forms. The exhibition is a collaboration between the Architekturmuseum and the Department for Urban and Regional Planning of the TU München.