Final answer:
Most cave paintings are found in France and Spain, with notable sites like Lascaux and Chauvet-Pont-d'Arc Cave.
Step-by-step explanation:
The two countries where most cave paintings are found are France and Spain. These countries have numerous cave painting sites that date back to the Paleolithic period, with some of the most impressive examples being the Lascaux caves in France and the Chauvet-Pont-d'Arc Cave in France.
These cave paintings provide insight into the artistic and cultural practices of our ancient ancestors.