World's Longest, Highest Glass Bottom Bridge Opens In China

Touted as the "world's highest and longest" glass-bottom bridge, it stretches between two mountain peaks in central China's Hunan province.

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The glass bridge spans 300m (984f) and is 180m (590f) above ground.

The bridge cost $3.4 million to construct and is "paved with 99 panes of three-layered transparent glass," according to Xinhua. Only 800 people are allowed on the structure at a time, the news agency added.