Locmariaquer Megaliths

The Locmariaquer megaliths are a Neolithic monumental complex in Brittany, France, dating to approximately 4700 BC [1]. The site includes the Er-Grah tumulus passage grave, the Table des Marchand dolmen, and the Broken Menhir of Er Grah—the largest known single block of stone ever transported and erected by Neolithic peoples [1]. This massive menhir originally stood with 18 other stones and was likely broken around 4000 BC, measuring 20.6 meters in length [1].