| UPDATED: 10:18, Fri, Feb 12, 2021 Link copied Stonehenge: Expert discusses ‘clues’ found under stones Sign up to receive our rundown of the day's top stories direct to your inbox SUBSCRIBE Invalid email When you subscribe we will use the information you provide to send you these newsletters. Sometimes they'll include recommendations for other related newsletters or services we offer. Our Privacy Notice explains more about how we use your data, and your rights. You can unsubscribe at any time. One of Britain's biggest and oldest stone circles has been found in Wales - and could be th...