First Bridge under Heaven is one of the "top10 spectacular views" of Zhangjiajie National Forest Park, and a landmark of Yuanjiajie (a part of the Zhangjiajie Natioanl Forest Park).
It is a natural stone bridge connecting the two hills at the top. In fact, there was originally just one mountain or a large sandstone block, but the middle part was relatively thin and weak. After years of weathering and erosion, the most of it was hollowed out, leaving a “bridge” at the top connecting the two pieces.
The bridge spans over 20 meters in length, is 2 meters wide and four meters thick and more than 300 meters high. It is the highest natural stone bridge found so far in the world.