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10 of the world's most wondrous natural arches

By: Bryan Nelson on May 15, 2014, 10:12 a.m.
Pont d’Arc

Photo: Klaus/Flickr

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Pont d’Arc, France

Carved out by the Ardeche River, Pont d'Arc is a popular kayaking spot, and you can see why. This natural bridge is almost 200 feet wide and 175 feet high.