The City Indicator Project is part of the module 'Sustainable Architecture, Urban and Landscape Planning,' attended by master's students specializing in Resource-Efficient and Sustainable Building at the Technical University of Munich. In this exhibition, we bring together information about the project's structure and outcomes, summarized by students in poster format. Featuring 25 cities from all around the world, we ask: How sustainable are they really? What does the sustainable city of the future look like?