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Xianren Bridge is the Worlds Largest Natural Arch

Xianren Bridge (simplified Chinese仙人桥traditional Chinese仙人橋; literally: "Fairy Bridge") is the world's largest natural arch by a wide margin.[1] Carved of limestone karst, the formation bridges Buliu River in northern Guangxi ProvinceChina. Because of its remote location, accessible only by a three-hour rafting trip,[2] it was not discovered until recently and remains relatively obscure. An expedition in October 2010 by the Natural Arch and Bridge Society first measured the bridge's span and found it to be 400 ± 15 feet (121.9 ± 4.6 m) in length.[1][3] @Curionic

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