Photo of the Day

Man exploring a cavern
September 21, 2009

Cavern Explorer, Tennessee

This Month in Photo of the Day: National Geographic Magazine

Underground you can still be the first person on Earth to take the small step, or the giant leap. This Tennessee cavern, christened Indianapolis by its premiere explorer, was only discovered last year.

See more photographs from the June 2009 feature story "Deep South."

Photograph by Stephen Alvarez
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