A heart-racing experience on top of America's highest bridge
On the 250th anniversary of the Declaration of Independence, Dwayne Fields travels across America. In Colorado, he visits the Royal Gorge Bridge, America's highest suspension bridge, which has stood for nearly a century. But it's more than a scenic landmark – thrill-seekers come for the chance to soar across the canyon on one of the country's highest ziplines.
This video is from The Travel Show, the BBC's flagship travel programme.
