The memorial exists since 1971 and is supported by more than 800 members of the association. In various historic stages, it tells the story of the fort, the construction of which started in 1867.

A permanent exhibition deals with the inhumane conditions in the SS special camp.

Via stairs, the way to this camp leads to rooms that look like medieval dungeons. They are equipped with furniture in the style of the 1940s; life-size figures symbolise the prisoners. They sit on benches tied up and blindfolded. Information boards inform about coercion and torture.

Of the external camp mainly remains of the kitchen have been preserved. Currently, these rooms cannot be accessed, but their history is mentioned during the guided tours. Plans exist to develop this part of the building through a new exhibition.

The inner rooms of the fort may only be accessed within the context of guided tours provided for various target groups.

Various short-term exhibitions, often about art, round out the cultural programme.