Zhangjiajie Grand Canyon Glass Bridge, about 40 kilometers (25 miles) from Zhangjiajie National Forest Park, is the world's longest and highest glass-bottomed bridge.
It offers a way to enjoy a panoramic view of the stunning Zhangjiajie Grand Canyon — if you dare to walk on it! It doesn't just serve as a walkway — visitors can go bungee jumping and zip-lining off of it as well.