The museum at Overbeck's
Once the home of eccentric inventor and collector, Otto Overbeck, you can hear the sound of the polyphon and see Otto's electrical rejuvenator, which was all the rage from the 1920s through to the 1940s.
Many generations of children have had great fun looking for Fred our friendly ghost. Can you help us to find him? If you can, you can collect your badge on the way out.