Tory & Kari examine how drop rides are designed to exploit riders' natural fear of falling. The two use themselves as test subjects as they plummet 335 feet on Falcon's Fury, the tallest freestanding drop ride in North America.

Tory experiments with Kari senses as she rides Colorado's Glenwood Canyon Flyer ride, which swings riders over a 1,300-foot cliff. She'll be vision and hearing deprived, testing how sight and sounds add to the thrills of a ride.