Set in the fields south of Silbury Hill, this is England's finest burial mound and dates from around 3500 BC. Its entrance is guarded by huge sarsens and its roof is made out of gigantic overlapping capstones. About 50 skeletons were found when it was excavated; finds are on display at the Wiltshire Heritage Museum in Devizes. A footpath just to the east of Silbury Hill leads to West Kennet (500m).