READY TO WALK WITHOUT SCREAMING ?? It is certainly not a path for the faint-hearted. China’s Tianmen Mountain National Park is a 61 meter (200 foot) long walkway of glass floor and railings. The walkway sits snugly against the mountain instead of jutting out over space but still offers a truly panoramic view all the way down the cliff side.
Unveiled in early November 2011, the Tianmen Mountain walkway is one of the world’s highest observation platforms at about 1,430 meters (4,700 feet) above sea level.