It might be surprising to find this level of luxury in Kreuzberg, but inside the mood-lit Kuppelhalle is an incredible sauna landscape, with such wellness wonders as a Himalayan salt-sauna, a steam room, a saltwater pool and finnish sauna, to name a few. Because there are no reservations, and it can fill up on the weekends quickly. Two hours cost 19.50 Euro, a day 29.50.
Möckernstraße 10, Berlin, Germany