Centralbadet is a bathhouse/spa, located in Stockholm. I’m not much of a spa guy, but I do like nice architecture and the spa is know for its art nouveau design and courtyard, dating to early 20th century. It’s kind of tucked away, but worth looking for if you’re in the neighborhood.
The facility has a gym, pool, sauna and such, as you would expect in a European bathhouse. The interior covers 3,500 square meters. It’s a lovely spot and a step back in time.