The FLEDERHAUS as an open space where the visitors can be find a new home and it can again serve as an oasis of relaxation and a symbol of a vertical public sphere. The visible design of the FLEDERHAUS is dissolving his self when the visitors are using the inside as an open space and get to a new dimension of a public space. Despite its name, it's not full of bats, but a cluster of hammocks – COME IN AND HANG OUT.