PINGJIANG, CHINA - SEPTEMBER 24: (CHINA OUT) Tourists take a selfie on a suspension bridge made of glass at the Shiniuzhai National Geological Park on September 24, 2015 in Pingjiang County, China. The 300-meter-long glass suspension bridge, with a maximum height of 180 meters, opened to the public on Thursday. (Photo by VCG/VCG via Getty Images)
