Glass-bottomed walkway, edge, skyscraper. 玻璃底走廊, 邊緣, 摩天大樓

Adrenaline running high: Jinmao Tower, a 88-storey skyscraper in Shanghai, has built a glass-bottom walkway on the top floor

Glass-bottomed walkway opens on the edge of a Chinese skyscraper at 1,115ft high | Daily Mail Online
http://www.dailymail.co.uk/news/peoplesdaily/article-3709293/Glass-bottomed-walkway-opens-edge-Chinese-skyscraper-1-115ft-high.html