Stonehenge, one of the world’s most famous prehistoric monuments and a World Heritage site, was built on the flat lands of Salisbury Plain in stages starting 5,000 years ago, with the unique stone circle erected in the late Neolithic period about 2,500 BC.
Some of the stones, the so-called bluestones, are known to have come from the Preseli Hills in southwest Wales, nearly 240km (150 miles) away, but the origins of others remain a mystery.