In Badenweiler, under a modern glass roof are the largest ancient bathroom ruins north of the Alps.
Bathing was also part of the everyday life of a Roman occupation soldier. The Romans brought the bathing system with them to the conquered countries. They found warm springs in Badenweiler.
The thermal bath was initially just a symmetrical, rectangular room. Only later did the system keep growing. Water channels, a heating system and the terrace were added later.