Ultimate Parkour Challenge (MTV)

When it's done right, parkour is tremendously fun to watch. Seeing someone sprint across a rooftop, spring off the edge, fall two or three stories, hit the ground rolling, and then spring up and keep running at full speed is just wild. The stunts these athletes pull off have to be seen to be believed, and even then it’s sometimes tough to believe that the moves are real. It looks extremely dangerous, but these trained experts make it look easy -- again, when it's done right.

But as one participant points out after a nasty fall, “we’re not superhuman.” No, they’re just regular people, prone to slips and accidents like anyone else; sometimes they don’t stick the landing or can’t quite grab onto the handhold they’re trying to reach. That’s when viewers realize how challenging -- and how dangerous -- these stunts can be. In the movies, parkour sequences can be repeated over and over until everything goes perfectly; that perfection belies the difficulty of this sport. On this show, viewers see both the amazing and the botched, and watching people fail only makes it easier to appreciate what they're trying to pull off.