In over 100 years, an oasis of tranquillity has been created on the clinic grounds between the Art Nouveau buildings: More than 100 unusual tree and shrub species have been gathered here from all over the world. Be it the tulip magnolia, the primeval sequoia, which was long thought to be extinct, then rediscovered in China and finally replanted in 50 countries, or the weeping beech, which has lived in the park since 1907. An educational tree trail leads to 25 particularly interesting tree species, and also past the Elisabeth Church in the neo-romantic style with its neighboring deer park. After the walk, the café with outdoor dining invites you to take a break.
The Psychiatry Museum preserves, organizes and processes evidence of the clinic's past. Because only those who know the past can constructively shape the future. In the Treise Chapel, for example, there is an unusual memorial for victims of euthanasia: the names of those affected can be found on a plaque - in duplicate. Removable plaques are distributed to citizens who symbolically take on the sponsorship of a deported patient and keep the memory alive. In 2015, the hospital grounds were the location for the historical film "Fog in August", based on the novel by Robert Domes.