Nick Wallenda conquers Grand Canyon


Daring aerialist Nick Wallenda completed an historic 1,500-high tightrope walk across the Grand Canyon in just 22 minutes Sunday. He's the first person to cross the canyon, and he did so without a tether or safety net.

The 34-year-old is a seventh-generation high-wire artist, part of the famous "Flying Wallendas" circus family, a clan that is no stranger to death-defying feats.

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