Photograph by Tim Graham/Getty Images
Whether you trace it to New York's South Bronx or the villages of West Africa, hip-hop has become the voice of a generation.
On the savannas of Senegal, chimpanzees are hunting bush babies with spearlike sticks, offering clues to our own evolution.
How a dinosaur hunter uncovered the Sahara's strangest Stone Age graveyard
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World Heritage Sites in Europe