It's dilapidated and so dimly lit inside you can barely read the placards, but fans of kitsch and oddball lore will enjoy learning about devices like the Flute of Shame for bad musicians (the finger screws tighten), the Neck Violin for quarreling women (a shackle locked the two face-to-face), branding tongs, skull crackers, a guillotine and the Iron Maiden of Nuremberg (use your imagination).

The museum displays each torture tool and describes (in multiple languages) how it works. Graphic engravings show the instruments in action. The building lies across the canal from the flower market.