Nik Wallenda walked across the Colorado River Gorge in Northern Arizona Sunday night. He did so on a tightrope suspended 15 hundred feet above the gorge. The only thing that separated him from a fatal fall was a two inch thick cable. The 34-year old member of the renowned "Flying Wallendas" family walked 14-hundred feet across the gorge which is near the Grand Canyon. The stunt comes a year after he crossed Niagara Falls. In Sunday's walk, he did away with his safety harness.