In September 1940, four boys and a dog set out on an adventure in Dordogne, France. Robot the dog ran ahead and stopped at an overgrown depression. When the boys decided to explore the hole, they slid into a deep underground chamber where they discovered the most famous cave paintings in the world- the Lascaux Cave Paintings. In this photo, Robot the dog with two of the four cave's discoverers.
Lascaux Caves – Motignac, France; The location of some complex caves in southwestern France, it is more famous for its Paleolithic cave paintings, which were discovered by a teenager in the 1940s. The Paleolithic art, which is estimated to be 17,300 years old consists of images of large animals known to exist in the area due to fossil evidence.