This undated photo provided Monday June 23, 2014 by the French Ministry of Culture shows a detail of the Cav,e of Pont d'Arc, southern France. Drawings of mammoths, human footprints and other art carved on cave walls in southern France about 30,000 years ago have been inscribed on UNESCO's World Heritage list. The U.N. cultural agency says that the Decorated Cave of Pont d'Arc contains the best preserved figurative drawings in the world. The drawings were unexpectedly discovered in 1994 by researcher Jean-Marie Chauvet. (AP Photo/DRAC Rhone-Alpes, Ministere de la Culture)