The Cairn of Barnenez is a Neolithic monument located near Plouezoc'h, on the Kernéléhen peninsula in northern Finistère, Brittany. It dates to the early Neolithic, about 4800 BC; it is considered one of the earliest megalithic monuments in Europe, as well as one of the oldest man-made structures in the world,
along with the Tumulus of Bougon and Locmariaquer megaliths, also located in Great West France. It is also remarkable for the presence of megalithic art.
Address (Unnamed Road), 29252, France
Coordinates 48°40'3.207" N -3°51'30.469" E