A new 4,700 foot high glass skywalk has opened at Tianmen Mountain in Zhangjiajie, Hunan Province, China. The 60 meter long skywalk is situated 4,400 feet above sea level and offers stunning views of the mountain cliffs. Tourists are required to wear shoe covers to keep the glass surface clean. The skywalk joins an existing cliff-side walkway and viewing platforms, adding another daring attraction to the scenic area.