| UPDATED: 10:48, Wed, Mar 3, 2021 Link copied Stonehenge: Expert says drone reveals 'hidden features' 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. Professor Mike Parker Pearson uncovered an ancient stone structure at Waun Mawn, in the Preseli Hills, during BBC Two's 'Stonehenge: The Lost Circle Revealed’ documentary earlier this month. Experts now theorise that the dismantled stone structure in Wales became the "building blocks" of the Stonehenge monument that stands in Salisbury, Wiltshire, today. Excavations and analysis of the area dated the stone circle to around 3400BC and found several similarities between both sites, leading Prof Parker Pearson to theorise people were moving eastward and bringing their cultural “crown jewels” with them.