StonehengeStonehenge is perhaps the worlds most famous prehistoric monument. It was built in several stages: the first monument was an early henge monument, built about 5,000 years ago, and the unique stone circle was erected in the late Neolithic period about 2500 BC. In the early Bronze Age many burial mounds were built nearby. From 1927, the National Trust began to acquire the land around Stonehenge to preserve it and restore it to grassland. Large areas of