Invincibility
Credit: Bryn Lennon / Getty Images

Held the last Sunday in January in Perton, England, the Tough Guy Competition is an eight-mile race designed to do one thing: inflict pain. The course is basically the backdrop of Saw and participants are subjected in short order to cuts, burns, dehydration, hypothermia, claustrophobia, electric shocks, sprains, joint dislocation, and, a lot of the time, broken bones. More than a third of participants don't make it to the finishing line. Those that do have serious bragging rights.