Grand Canyon tightrope walk: What was that huge pole for

Nik Wallenda defies death with successful tightrope of 'Grand Canyon' - Men's Journal

Wallenda makes Grand Canyon crossing on high wire, June 23, 2013

Torque and Moment of Inertia - STEM Lesson Plan (Grades 7 - 12

Where Wallenda plans to walk, another tightrope was stretched

Can You Walk the Tightrope?

Nik Wallenda Crosses 1,500-Foot Grand Canyon Gorge on Tightrope

Daredevil Nik Wallenda Defies Gravity, Walks On Wire Across Active Volcano

Tightrope

US daredevil Nik Wallenda walks across Grand Canyon on tightrope - ABC News

High-wire artist Nik Wallenda walks across canyon, but maybe not Grand, US news

Wallenda high wire act presents lesson on facing fears

Nik Wallenda attempts to cross the Grand Canyon on a tightrope with NO safety harness

Nik Wallenda, continuing family tradition, to walk tightrope across Niagara Falls Friday (video)

The World's Most Controversial High-Wire Walker Has A Plan To Take Over Entertainment