October 25, 2009 - Slade, Kentucky, USA -Fall color as viewed from under the Natural Bridge sandstone formation. The arch is 78 feet in length, 65 feet high, 12 feet thick, and 20 feet wide. Some geologists believe that the natural sandstone arch, which has been drawing tourists since 1889, is at least a million years old. (Credit image: © David Stephenson)
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