the Grand Canyon Skywalk is a large, semicircular bridge with a transparent glass floor, allowing tourists to walk out 70 feet from the canyon rim and view the bottom from 4,000 feet above.

UPDATE: He made it! After nearly 23 minutes, Nik Wallenda is the first human to ever cross the Little Colorado River Gorge on a wire. Daredevil Nik Wallenda has a wife, three children, and he's ...

This 4000-foot high glass bridge can withstand over 71 million pounds of weight, and experience the sensation of seeing the canyon fall straight away below their feet. The Grand Canyon Skywalk enables ...

A glass-bottom bridge in Hunan province is set to blow the rest of China's glass bridges out of the water. The new bridge, across the Zhangjiajie Grand Canyon in Hunan province, will open in the ...