Stonehenge: The Four-Ton Rocks That Came From Wales
The bluestones of Stonehenge weigh four tons each and came from the Preseli Hills of Wales—150 miles from Salisbury Plain. The builders had no metal tools, no wheels, no draft animals. That’s the logistics problem at the heart of the monument. Construction ran in phases over roughly 1,500 years, starting around 3000 BCE. The bigger […]