Windmill Hill

Windmill Hill is a Neolithic causewayed enclosure in the English county of Wiltshire, situated around 1 mile (2 km) north west of Avebury. It is the largest example of its type in the British Isles enclosing an area of 85,000 square metres. The site was first occupied around 3800 BC although the only evidence is a series of pits apparently dug by an agrarian society using Hembury pottery.