Skara Brae, looking north

Skara Brae (pron.: /ˈskærə ˈbreɪ/) is a stone-built Neolithic settlement, located on the Bay of Skaill on the west coast of Mainland, the largest island in the Orkney archipelago of Scotland. It consists of ten clustered houses, and was occupied from roughly 3180 BCE–2500 BCE. Europe's most complete Neolithic village, Skara Brae gained UNESCO World Heritage Site status as one of four sites making up "The Heart of Neolithic Orkney."

• http://en.wikipedia.org/wiki/Skara Brae
• A History of Britain (TV series)
• Page 146 - Hunt, P., 2007, Ten Discoveries that Rewrote History: Penguin, New York, 226p.