Grotte de Rouffignac - Périgord La grotte aux cent mammouths http://www.hominides.com/html/lieux/grotte-de-rouffignac.php
Cuevas de Altamira (autores habitantes del paleolitico superior) Cantabria Spain
Prehistoric Cave painting | 35000 years ago | Ancient Art History
Big Horse, cave art painting - by Sherry Bryant, Tucson, AZ. Conte crayon.
Altamira Cave Paintings | Photoof the marked section of the ceiling
Black bison, prehistoric painting from the Chauvet Cave, southern France. The paintings date from 30,000-32,000 years old.
Lascaux Wall Art (not) a decorator site, doubt this is the real thing, looks cleaned up. Not ugly, but gee, people will make money on anything