Xtreme Screams

Ear-piercing shrieks are heard throughout this series, which sees people set aside their inner fears to take part in adrenaline-busting rides, attractions and experiences around the world. From Colorado's Terror-Dactyl, which launches riders 100 mph over a canyon, to a heart-pounding jump off the 260-foot-high Moses Mabhida Stadium in Durban, South Africa, each adventure has one thing in common -- the sound of fear. …