Scientists solve mystery of the origin of Stonehenge megaliths
The sarsens were erected at Stonehenge around 2500 BC. The largest stands 30 feet (9.1 meters) tall. The heaviest weighs about 30 tons.
FILE PHOTO: A security officer patrols around the perimeter Stonehenge stone circle, where official Summer Solstice celebrations were cancelled due to the spread of the coronavirus disease (COVID-19), near Amesbury, Britain June 20, 2020(photo credit: REUTERS/TOBY MELVILLE/FILE PHOTO)ByREUTERS
