France
The French region of Brittany has the second highest concentration of megalithic art. The earliest examples in this area are with anthropomorphic representations on menhirs which later continued in passage graves. Brittany shares some motifs with both Ireland and Iberia and the level of contact between them has always been debated. Among the most famous examples are the passage grave at Gavrinis and the Barnenez mound.
Read more about this topic: Megalithic Art