Launch from the top of the Rio's 50-story Masquerade Tower and fly through the air in a comfortable two-seater zipline chair. The views of the city are, of course, impressive, and if you have a GoPro camera, this is the time to use it. No hats, glasses or flip-flops are allowed on the ride, but a small locker is provided to store your bags. Tickets from $29.99.