The „Wien Museum“ is situated in a building designed by Oswalt Haerdtl. For many decades it was the only new built museum in Vienna and it is one of the few existing architectural examples of the 50`s. For the extension of the existing building an international, two staged competition was organized. 274 projects were handed in, and as the competition attracted quite a lot of public interest, the museum decided to exhibit all of the projects. For the projects of the first stage we had to deal with a very small space and too little wall surface. So we came up with the idea of a labyrinth. Dealing with such a mass of information, we decided to focus on the model. The models are lined up next to each other and create a sense of an endless strip. The second stage was exhibited in the big aula of the museum – an ample and bright space.