Gavrinis

Gavrinis is a small island in the Gulf of Morbihan, Brittany, France, home to a Neolithic passage tomb built c. 4200–4000 BC, making it one of the world's oldest surviving buildings[1]. The stones lining its passage and chamber are covered in megalithic art[1]. The tomb is part of a broader complex of Breton megalithic monuments including Carnac and Locmariaquer[1]. It is closely comparable to other major passage tombs such as Barnenez in Brittany and Newgrange in Ireland[1].