Tianmen Mountain (Heaven's Gate Mountain) is a cave natural arch eroded through a karst syncline. It is located within Tianmen Mountain National Park, about 8 km south of the city of Zhangjiajie in northwestern Hunan Province.
A new trail path in china's tianmen mountain national park offers visitors an unusual experience: the floor and rails of the pathway are composed of glass, offering walkers a vertigo-inducing look at the sheer drops and wilderness below.
The 99 bends on Tianmen Mountain - China. The 99 Bends The 99 bends on Tianmen Mountain There are 99 sharp curves on the road up to Tianmen Cave, the famous 99 Bends. The best place to see and take photos of these bends is from the cable car.