where is the world's largest cave located
Hang Sơn Đoòng Located near the Laos–Vietnam border, Hang Sơn Đoòng has an internal, fast-flowing subterranean river and the largest cross-section of any cave, worldwide, as of 2009,[1][2] believed to be twice that of the next largest passage. It is the largest known cave passage in the world by volume.
Lascaux Lascaux (French: Grotte de Lascaux, "Lascaux Cave"; English: /læsˈkoʊ/,[1] French: [lasko][2]) is the setting of a complex of caves near the village of Montignac, in the department of Dordogne in southwestern France. Over 600 parietal wall paintings cover the interior walls and ceilings of the cave. The paintings represent primarily large animals, typical local and contemporary fauna that correspond with the fossil record of the Upper Paleolithic time. The drawings are the combined effort of many generations, and with continued debate, the paintings are estimated around 17,000 years BP.[3][4][5] Lascaux was inducted into the UNESCO World Heritage Sites list in 1979, as element of the Prehistoric Sites and Decorated Caves of the Vézère Valley.[6]