Stonehenge is a prehistoric monument in Wiltshire, England, about 2 miles (3.2 km) west of Amesbury and 8 miles (13 km) north of Salisbury. One of the most famous sites in the world, Stonehenge is the remains of a ring of standing stones set within earthworks. It is in the middle of the most dense complex of Neolithic and Bronze Age monuments in England, including several hundred burial mounds.^[1]
Archaeologists believe it was built anywhere from 3000 BC to 2000 BC. Radiocarbon dating in 2008 suggested that the first stones were raised between 2400 and 2200 BC,^[2] whilst another theory suggests that bluestones may have been raised at the site as early as 3000 BC.