
Glass-bottomed bridge —
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."

View from above —
Don't look ... OK, do look down. The 430-meter-long bridge overlooks a stomach-churning 300-meter drop.

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.

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.

Selfie restrictions —
Selfie sticks were also said to be banned from the bridge.

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."

Design classic —
The bridge was designed by Israeli architectural firm Haim Dotan.

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.

Restricted numbers —
"We're overwhelmed by the volume of visitors," the spokesperson told CNN.

Tourist destination —
Zhangjiajie is already a popular destination with visitors thanks to its dramatic landscape of peaks and valleys.


