The Gradierwerk with its wooden structure is one of the last structures of its kind in Germany
The mighty graduation tower (Gradierwerk) (length 140 m, height 12 m) with its imposing wooden construction is one of the last structures of its kind in Germany. After a story shaped by salt, today it invites visitors and guests to our city to inhale the air enriched with brine.
The graduation house still supplies the Kurmittelhaus with 12% brine. Once over straw, today over blackthorn, the brine trickles down so that it is "graded" (concentrated) to 25% by evaporation of water when it drips down. This used to save a lot of wood when boiling and later lignite in order to obtain the salt. As early as 1887, it was given a covered walkway so that it can still be used today as an open-air inhalatorium.
In the main season, those looking for relaxation are available free of charge at the graduation tower. Enjoy letting your mind wander in the healthy air and at the same time doing something good for yourself and your body.