The prehistoric monument, located in Wiltshire in southern England, is one of the world’s most famous and oldest man-made structures. Stonehenge was built by the late Neolithic people around 5000 years ago, in 3000 BC. It’s a question that has baffled people for centuries, no theory has been proven why Stonehenge was built? How could people thousands of years ago have transported and arranged such colossal stones?