Skywalk

The Grand Canyon Skywalk is a horseshoe-shaped cantilever bridge with a glass walkway at Eagle Point in Arizona near the Colorado River, on the edge of a side canyon in the Grand Canyon West area of the main canyon. It opened as a tourist attraction in 2007, located outside the boundaries of the Grand Canyon National Park.

USGS topographic maps indicate the Skywalk's elevation as 4,770 ft above sea level. The elevation of the Colorado River at the base of the canyon below is 1,160 ft. The vertical drop directly below the skywalk is 500 to 800 feet. The attraction is immediately north of Grand Canyon West Airport and about 75 miles east of Las Vegas, Nevada, although nearly 130 miles by car. The nearest city with a population greater than 10,000 people is Kingman, Arizona, about 50 miles south.

Source: Wikipedia