- a prehistoric monument on Salisbury Plain, Wiltshire, England, consisting of a large circle of megaliths surrounding a smaller circle and four massive trilithons; dating to late Neolithic and early Bronze Age times (c1700–1200 b.c.) and believed to have been connected with a sun cult or used for astronomical observations.
- a prehistoric ruin in S England, in Wiltshire on Salisbury Plain: constructed over the period of roughly 3000–1600 bc; one of the most important megalithic monuments in Europe; believed to have had religious and astronomical purposes
