Long Durational Natural Phenomenon
EXISTENCE OF WULINGYUAN
Duration: 400 million years
Wulingyuan Scenic and Historic Interest Area is a UNESCO World Heritage Site in Hunan Province, China. It is noted for more than 3,000 quartzite sandstone pillars and peaks across the site — many over 200 meters (660 feet) in height — as well as ravines and gorges with attractive streams, pools, and waterfalls. It features 40 caves, many with large calcite deposits, and two natural bridges, Xianrenqiao (Bridge of the Immortals) and Tianqiashengkong (Bridge Across the Sky).
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