Learned from The WEB:travel.huanqiu.com,Zhangjiajie Tianmen Mountain‘s ladder received rating the world’s ten domineering stairs.
Zhangjiajie Tianmen Mountain‘s ladder is located in Tianmen Hole, a total of 999 steps, the vertical inclination of 45 degrees, we can sure you will be amazed by this ladder.
Source: Zhangjiajie Official Web Portal
