A glass-bottomed bridge in China, suspended 3,543 feet above the ground, cracked while visitors were walking on it. “I was almost at the end and suddenly I heard a sound. My foot shook a little. I looked down and I saw that there was a crack in the floor,” said Lee Dong Hai, one of the people on that bridge. It’s located at the Yuntai Mountain Geological Park in Henan Province, and opened just over three weeks ago on September, 20 2015. The U-shaped bridge measures 223-feet long and is capable of carrying 800 kilograms per square meter. Continue reading for more interesting photos.