West Kennet Long Barrow is a prehistoric burial mound located in Wiltshire, England. Built around 3650 BC, it is one of the largest and best-preserved long barrows in the country. The structure is made of chalk and flint, featuring a long, rectangular shape that measures about 100 meters in length. The barrow served as a communal burial site for the Neolithic people. Inside, archaeologists have discovered multiple human remains and grave goods, indicating its significance in ancient rituals and beliefs. Today, it is a popular site for visitors interested in Stone Age history and archaeology.