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10 of the world's most wondrous natural arches

By: Bryan Nelson on May 15, 2014, 10:12 a.m.
Arco Naturale

Photo: Wikimedia Commons

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Arco Naturale, Italy

Found on the east coast of the island of Capri, this natural arch offers a spectacular window to the sea. Dating from the Paleolithic age, it is the remains of a collapsed grotto.