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France's Culture minister Christine Albanel (L) visits the Lascaux Cave on July 25, 2008 near the village of Montignac, south Western France, before signing a contract for cultural, tourist and patrimonial resources valuation of the Valley of Vezere. The cave, added to the UNESCO World Heritage Sites list in 1979, containing some of the most well-known Upper Paleolithic art, estimated to be 16,000 years old, was closed to the public in 1963 in order to preserve the art. AFP PHOTO / PIERRE ANDRIEU (Photo credit should read PIERRE ANDRIEU/AFP/Getty Images)

France's Culture minister Christine Albanel (L) visits the Lascaux Cave on July 25, 2008 near the village of Montignac, south Western France, before signing a contract for cultural, tourist and patrimonial resources valuation of the Valley of Vezere. The cave, added to the UNESCO World Heritage Sites list in 1979, containing some of the most well-known Upper Paleolithic art, estimated to be 16,000 years old, was closed to the public in 1963 in order to preserve the art.  AFP PHOTO / PIERRE ANDRIEU        (Photo credit should read PIERRE ANDRIEU/AFP/Getty Images)