Take the plunge over the side of the Stratosphere on the tower's scary thrill ride.

by Ryan Slattery

In Short
Grab a front-row seat for this over-the-edge experience. The X-Scream takes its eight passengers off the observation deck of the world's eighth-tallest building, stops suddenly and dangles them there, 866 feet above the ground. If that's not enough, this massive teeter-totter coaster bounces and repeats for a full minute.