Taken from lostatminor.com
"A glass-bottomed bridge in Hunan’s Shiniuzhai Geopark recently opened to the public, making this nightmare structure the world’s longest glass bridge. And probably the most terrifying.
While the bridge spans just 300 metres between two cliffs, it sits 180 metres above ground and is made of double-layered glass that’s just 24 millimetres thick. But don’t worry, apparently that glass is 25 times stronger than normal glass. I’m not engineer, but 25 times stronger doesn’t make me feel any better about this. Try 250,000 times stronger than regular glass, people!
‘The bridge we build will stand firm even if tourists are jumping on it’, said a worker who helped build the bridge. Tourists jumping? Are you serious? What kind of sick people jump up and down on a glass bridge suspended from two cliffs?
‘The steel frame used to support and encase the glass bridge is also very strong and densely built, so even if a glass is broken, travelers won’t fall through’, the worker continues."