Vote: What's Your Favorite Stunt? Herbert Nitsch is the current record-holder for free deep-sea diving. Courtesy Phil Simha/Herbert Nitsch This Friday, Nik Wallenda makes an unprecedented walk across a cable suspended 200 feet above Niagara Falls. Others have traversed the gorge but never above the actual cascades. Still, when it comes to history-making stunts, Wallenda is in good company. Daredevils from around the world have wowed crowds with unbelievable feats for centuries. See this slideshow to learn more. What is your favorite history-making stunt? Vote for one below or tell us in the comments section and watch "Megastunts: Highwire Over Niagara Falls Live" Friday at 8 p.m.