The Stonehenge Stonehenge,the most famous prehistoric monument in Britain,is situated on Salisbury Plain in the county of Wiltshire.At various times regarded as a site built by the Druids,the Romans,the Danes and even the French,the first stage—a circular ditch and bank with an entrance flanked1 by a pair of small standing stones—is believed to have been built around 3000 BC.The site was abandoned later and rebuilt between 2100 BC and 1800 BC. There are many mysteries surrounding this ancient site.Some of the stones used are thought to have come from the Preseli mountains in Pembrokeshire,Wales—yet exactly how they were transported to the site in such a primitive2 age is a puzzle.Experts believe they may have been transported for most of the way by water,before being dragged overland for the last stage of the journey.