It's been 80 years since four teenagers discovered the Lascaux cave paintings in Montignac, France.
On September 12, 1940, one of the best examples of paleolithic art was revealed to the world.
After rescuing their dog from a small cavern in the woods, four French teenagers decided to explore further. They found a vast cavern, its walls adorned with images of animals and humans.
The Lascaux cave paintings date back 15,000 to 17,000 years ago, and were made with natural pigments like red and yellow ochre and black magnesium oxide.
Here are 7 pictures of these ancient paintings from inside the Lascaux cave.