Within the basement of Hotel Adler could be found the spa and baths. Water from nearby natural sulfur springs would be pumped in, and various sulfur based treatments were offered for an additional price. Such treatments included, sulfur baths, nauheim mineral baths, massages, and a scotch douche (lol). The basement spa area was large, confusing, and split into dozens of private rooms. The space was also quite dungeon like, being that there existed absolutely no windows to allow in natural light, a stark contrast to the naturally illuminated Imperial Bath House, just down the street. Today the spa walls grow mold and the air is thick with pungent fumes burped up through rusted sulfur water pipes.