Unlocking Stonehenge's Secrets - Michael Parker Pearson

Five thousand years ago, stones weighing between two and thirty five tons were carved from quarries near Wales and transported 170 miles before they were settled into place to withstand the test of time. The monoliths, now known as Stonehenge, weren't carried by aliens, nor were they made by Druids. Nat Geo Explorer and archaeologist Michael Parker Pearson is working to understand the stone structures and the motivations of those who erected them. He also says that it's possible the stones were simply carried with the help of many hands.