I can’t believe I saw Stonehenge! The most famous prehistoric monument. A UNESCO World Heritage Site. Archeologists believe it was constructed from 3000 BC to 2000 BC. The claim was made that Stonehenge was the work of the Celtic high priests known as the Druids. It consists of roughly 100 massive upright stones placed in a circular layout. It was once a burial site. If you go, take the advantage of all they have to offer to learn as much as you can about this interesting piece of history.