Fortified structures had been built on the Schlossberg since the 11th century. Remains of some of them are still visible today. For a few years now, the board of trustees has tried to make the historical past of the Schlossberg in Freiburg more visible. To achieve this, the remains of the old, overgrown fortifications are being carefully uncovered to make them available to interested visitors. The tower located on the hill (Schloßbergturm) offers a unique panoramic view over the whole town and its vicinity, and was built in 2002 as a project of the board of trustees.