Cosmos is the title of an exhibition project, which was implemented in 2018 in the Palais de Rumine in Lausanne. The four museums located there – for zoology, geology, archaeology & history, and monetary – came together for the first time in their history to put on a joint show. Atelier Poisson was instructed with the design, the setting of the exhibition and the co-curating part with the four museums. The designers also took over the catalogue design and external communications. The exhibits came from the well-stocked collections of the museums and many had never been on display to the public up to that point. Inspired by the “cabinets of wonder” that were popular in the Renaissance and that are now regarded as the incubator of the museum, Atelier Poisson designed the exhibition around 12 topic blocks. The main idea of creating compositions between pieces from different collections showed that each object can be seen through different angles and perceived from various scientific aspects. Equally unconventional and varied forms of presentation enabled the items to be seen in a new light and to awaken the curiosity of the visitors.