I hope this doesn't come off as sadistic but I find devices of torture throughout history strangely fascinating.

• Brazen bull.
• Iron maiden.
• The rack.
• Judas cradle.
• Scaphism.
• Scold's bridle or branks.
• Heretic's fork.
• Necklacing.
• Breaking wheel.
• Burning at the stake.
• Waterboarding.
• Tiger bench.
• Bamboo shoots under the fingernails.
• Impalement.
• Pear of Anguish.