In 1934, the listed main building opened its doors as a youth hostel. Countless camps and youth movements were housed there. The nearby open-air swimming pool with slides and fountains was a real crowd-pleaser.
Outdoor swimming pool
However, the swimming pool was inaccessible to the emergency services, and its permit was revoked in 2002. The Kosmos was doomed after the closure of the swimming pool. In 2005, the doors of the youth hostel were closed for good.