December 11, 2015

Tianmen Mountain, China

Photograph by SHAO YING Xinhua, Redux

Some 4,700 feet above sea level, a glass walkway hugs the side of Tianmen Mountain in Zhangjiajie, China. The mountain, located in Tianmen Mountain National Park in the Hunan Province, also features what is billed as the longest high-mountain passenger cableway in the world.

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