With an immense, drooping span of 704 feet of webbing wobbling beneath his feet, Jerry Miszewski steadily places one bare foot in front of the other. He is hundreds of feet above a valley floor with a goal to reach the other side of the canyon without falling.
Watch as Miszewski breaks a world record for the longest highline ever walked. (The video is long, so start at 1:11 if you just want to see the footage of him attempting to cross.) —Amy Oberbroeckling