Workers examine a wall at the site of the Cavern of Pont-d'Arc project in Vallon Pont d'Arc, June 26, 2014. The Cavern of Pont-d'Arc project is a replica of the pre-historic Decorated Cave of ... more 
Workers examine a wall at the site of the Cavern of Pont-d'Arc project in Vallon Pont d'Arc, June 26, 2014. The Cavern of Pont-d'Arc project is a replica of the pre-historic Decorated Cave of Pont-d'Arc known as Grotte Chauvet, in Vallon Pont-d'Arc in the Ardeche region, containing the world's earliest known art which was recently named a UNESCO World Heritage site. The facsimile cavern, which condenses some 8000m2 of the original site into 3000m2, will display faithful reproductions of paintings and engravings and is planned to open to the public in Spring 2015. Picture taken June 26, 2014. REUTERS/Robert Pratta (FRANCE - Tags: SOCIETY) less 
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Reuters | Photo By ROBERT PRATTA / REUTERS
Fri, Jun 27, 2014 10:46 AM EDT