Even on the spot we could not understand what it this, so we went on the Internet. The official name of this construction is Graduation tower (Gradierwerk) and these walls were used for salt production. Mineral water was lifted from the ground by pumps, which worked with windmills. Then the water slowly flowed down the branches of blackthorn that made up the wall. Along the way it evaporated and the salt concentration increased.
The medical name of the place is the open-air inhalatorium (Freiluftinhalatorium). Evaporating salt water, creates air around it, like sea air. Such walls are used to treat respiratory diseases.
The city also has a large park areas, though the entrance to the resort park is paid, although inexpensive.
If you walk quite far, you can reach the aviaries with animals.
The center of the resort is small, but beautiful, it's nice to walk around
Traditional Resort Villas