On August 20, China opened the world's highest and longest glass-bottomed bridge in Zhangjiajie in China's Hunan Province. It has closed 13 days later, due to "overwhelming demand."
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View from above —
Don't look ... OK, do look down. The 430-meter-long bridge overlooks a stomach-churning 300-meter drop.
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Safety first —
The bridge's builders say its toughened glass panels can support hundreds of people at a time -- up to 8,000 visitors a day. They've staged safety demonstrations inviting people to try to smash the glass.
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Sensible shoes —
At the time of opening, high heel stiletto-style shoes were said to be banned on the structure, in order to protect the glass.
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Selfie restrictions —
Selfie sticks were also said to be banned from the bridge.
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Sci-fi landscape —
The bridge spans two cliffs in Zhangjiajie Park, which is said to be the inspiration for the landscape in the sci-fi movie "Avatar."
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Design classic —
The bridge was designed by Israeli architectural firm Haim Dotan.
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Popular attraction —
A Zhangjiajie Grand Canyon spokesperson estimated that visitor demand has been about ten times as much as the bridge's 8,000-per-day capacity.
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Restricted numbers —
"We're overwhelmed by the volume of visitors," the spokesperson told CNN.
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Tourist destination —
Zhangjiajie is already a popular destination with visitors thanks to its dramatic landscape of peaks and valleys.