Nik Wallenda puts on his walking shoes before performing a walk on a tightrope during training for his walk over Niagara Falls in Niagara Falls, N.Y., Wednesday, May 16, 2012. Wallenda can&#x27;t visit a new place without envisioning a wire strung high above his head: Linking buildings, landmarks, nations. Even as a 6-year-old at Niagara Falls with his parents, he pictured walking a tightrope over the raging, whitewater maw. Now 33, he&#x27;s ready to live out that childhood fantasy when he attempts Friday, June 15, 2012 to become the first person ever to walk a tightrope directly over the brink of Niagara Falls. (AP Photo/David Duprey)
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