Ile-aux-Moines, France
Photo: Ji-Elle, CC BY-SA 3.0 via Wikimedia Commons
Corridor dolmen in granite engraved with goddess, 3 axes and axe-plough, dating from Neolithic period. Registered as an historic monuments in 1979.
© OpenStreetMap contributors
Half-circle of 24 stones, dating from Neolithic period. Registered as an historic monuments in 1862.