STADTSPIEGEL is an approach to revive a non-place and nudge communication between strangers. The interactive installation is made of mirror foil, from inside its seethrough, the outside reflects the environment. It can be entered through a small gap. Like a big hammock two nets, left and right of the entrance, are attached to the ceiling. By touching the mirror foil, the reflections deform. During the night projectors turn the installation into a three-dimensional screen, lightening up the dark space underneath the bridge.