China has added a special effect to a glass-bottomed walkway. Using sensors and other tricks, the glass floor appears to shatter as tourists walk on the bridge, which hangs close to 3,900 feet above sea level along a mountain cliff. But for those who don't know it's a trick, it could be a terrifying experience, footage posted by people's daily online shows One Man, who appears to be a tour guide, stumbling over and falling to his knees and fear as the glass panel cracks under his feet. The 10-second-long video has gone viral on social media, with some calling the feature funny, while others say it's just cool. Sensors have been insulted to detect any human movement, so the cracks follow your steps as you walk. The local government has issued an apology for the scare, but doesn't plan to replace the panels with regular ones, because they want visitors to come and experience them. Before you met a news international in Tokyo, I'm Rumi Fukushima.