The hook
The Dordogne valley where Ice Age people painted galleries of bulls, horses, and deer seventeen thousand years ago, so vivid the discovery reset what we thought "primitive" meant.
01Why it's worth it
Lascaux was found in 1940 by teenagers following a dog down a hole, and inside were hundreds of animals painted and engraved across the walls with real movement and skill, including a hall of huge aurochs. The original was closed in 1963 because visitors' breath was destroying it, so what you see now is Lascaux IV, an exact facsimile of the whole cave built next door. The copy sounds like a compromise and mostly isn't; it is faithful enough to land. But the valley's honest secret is that you can still stand in front of genuine prehistoric paint: nearby Font-de-Gaume is one of the last decorated caves with polychrome art still open to the public, admitting only a tiny number of people a day. The wider Vézère is dense with painted caves, rock shelters, and a prehistory museum, a concentration of deep human time you can walk through.
02How to experience it
Do Lascaux IV for the full painted cave, and if the real thing matters to you, book Font-de-Gaume the moment tickets release, because the daily count is minuscule and it sells out fast. Base in Les Eyzies or Sarlat and give the valley a couple of days for the other shelters and the medieval towns.