One of the more controversial additions to the Grand Canyon's surroundings, the Grand Canyon Skywalk is a large, semicircular bridge with a transparent glass floor, allowing tourists to walk out ...

Within Grand Canyon National Park, there is only one way to drive over the Colorado River and that's via the Navajo Bridge on the northeast end of the park. Starting in the 1870s, more people had ...

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 ...