World's highest and longest glass bridge in China whacked with a sledgehammer
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The world's highest and longest glass-bottomed bridge is expected to open in next month in central China. The glass walkway spans some 1,400 feet—over a quarter of a mile—across the Zhangjiajie Grand Canyon in one of the country's most pristine national parks. Before opening day, though, bridge officials hope to reassure people about its safety. To prove the bridge is strong enough to hold hundreds of visitors at a time, they invited BBC Click’s Dan Simmons to visit the bridge, and take a...