Guides are also happy to tell you the tale of the ghost that haunts the prison and how doors often swing open by themselves, how light bulbs screw out of their sockets and how visitors and staff have felt the disturbing cold of a presence not of this earth. The hauntings were even investigated in an episode of the SciFi Channel's Ghost Hunters International. They claimed it was one of the most active locations they had ever visited.
Visitors can take a simple tour with a guide or audio guide, participate in a reality show (in English or German), spend the night in a cell or do the ultimate and become a prisoner for the night including regular bed checks, verbal abuse by guards in period uniforms and experience the horrors of using the latrine (see website for details). For participatory events you must call ahead and reserve a time.