World's Longest Glass Bridge
This glass suspension bridge has just opened in Hunan. The floor is made of double-layered glass that is 24mm (0.94in), and is reportedly 25 times stronger than regular window glass. It is 180 meters to the ground below. It spans the gap between two cliffs at the Shiniuzhai National Geological Park in Pingjiang County. View more : http://shanghaiist.com/2015/09/25/china_…