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Photographer Galleries
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Seven Billion Photo Gallery
There will soon be seven billion people on the planet. Find out why you shouldn’t panic—at least, not yet.
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Cahokia Photo Gallery
Cahokia was born with a bang and died of unknown causes. Yet, it remains America's forgotten city.
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Timbuktu Photo Gallery
The caravan city harbors great books, mysterious letters—and a world of intrigue.
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Vietnam Cave Photo Gallery
There’s a jungle inside Vietnam’s mammoth cavern. A skyscraper could fit too. And the end is out of sight.
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Watch Video
Watch Casey Anderson with his lovable best friend Brutus, the 800-pound bear he raised from birth.