![Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario, June 15, 2012. REUTERS/Mark Blinch (CANADA - Tags: Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario, June 15, 2012. REUTERS/Mark Blinch (CANADA - Tags:](https://c8.alamy.com/zooms/6/d4174761b89042ada05ddf5b89c49c5d/2e5m693.jpg)
Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario, June 15, 2012. REUTERS/Mark Blinch (CANADA - Tags:
![Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario June 15, 2012. Wallenda, a member of the Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario June 15, 2012. Wallenda, a member of the](https://l450v.alamy.com/450v/2d027y5/tightrope-walker-nik-wallenda-walks-the-high-wire-from-the-us-side-to-the-canadian-side-over-the-horseshoe-falls-in-niagara-falls-ontario-june-15-2012-reutersmike-cassese-canada-tags-society-2d027y5.jpg)
Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario June 15, 2012. Wallenda, a member of the
![Nik Wallenda, Lijana Wallenda to attempt highwire walk across Times Square during ABC special - ABC7 San Francisco Nik Wallenda, Lijana Wallenda to attempt highwire walk across Times Square during ABC special - ABC7 San Francisco](https://cdn.abcotvs.com/dip/images/5313861_052319-cc-getty-wallenda-siblings-img.jpg?w=800&r=16%3A9)
Nik Wallenda, Lijana Wallenda to attempt highwire walk across Times Square during ABC special - ABC7 San Francisco
![Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario June 15, 2012. Wallenda, a member of the Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario June 15, 2012. Wallenda, a member of the](https://l450v.alamy.com/450v/d2xt2j/famed-daredevil-nik-wallenda-walks-a-tightrope-200-feet-over-the-waterfront-d2xt2j.jpg)
Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario June 15, 2012. Wallenda, a member of the
![Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario June 15, 2012. Wallenda, a member of the Tightrope walker Nik Wallenda walks the high wire from the U.S. side to the Canadian side over the Horseshoe Falls in Niagara Falls, Ontario June 15, 2012. Wallenda, a member of the](https://l450v.alamy.com/450v/2cxhac0/high-above-the-california-avenue-beach-tightrope-walker-nik-wallenda-walks-the-high-wire-in-atlantic-city-new-jersey-august-9-2012-wallendas-1500-foot-4572-meter-walk-was-watched-by-thousands-of-visitors-to-the-famed-boardwalk-reuterstom-mihalek-united-states-tags-society-2cxhac0.jpg)