Who built it? Why? How did they get the stones there to begin with?
Theories have ranged from Stonehenge being a clock, to a calendar, even a sacrificial altar.
The Druids and Greeks have been mentioned as possible builders. Then again, so have aliens from UFOs, and Atlanteans.
But a new excavation at the site, led by Britain's Falmouth University, has led to yet another theory. Now, archeologists at Stonehenge, such as Andrew Fitzpatrick of Wessex Archoelogy, say the 4,000-plus-year-old wonder may actually have been -- a place of healing.
On The Early Show Thursday, Fitzpatrick explained how that conclusion was reached.
To see the interview, click on the arrow in the image below.