A new 4,700 foot high glass skywalk has been constructed on the side of Tianmen Mountain in Zhangjiajie, Hunan Province, China. The 200 foot long glass bridge spans a cliff face 4,000 feet above sea level, allowing tourists to walk suspended over the natural wonder and look through the glass floor to the canyon below while taking in panoramic views of the region. Visitors must wear shoe covers to keep the glass path clean.