Stonehenge mystery solved: Did the monument used to be a full circle? (VIDEO).

Longtime Stonehenge Mystery Solved by Unlikely Source (Video)   

Longtime Stonehenge Mystery Solved by Unlikely Source (Video)   

Slate in motion.
Sept. 3 2014 1:50 PM

Was Stonehenge Once a Full Circle?

Dry weather and a short hose may have revealed one of the prehistoric monument’s secrets.

SALISBURY, ENGLAND - MARCH 02: (EDITOR'S NOTE: A GRADUATED FILTER WAS USED IN THE CREATION OF THIS IMAGE) Visitors and tourists walk around the ancient monument at Stonehenge on March 2 2012 in Wiltshire, England. The English Heritage, managed prehistoric UNESCO World Heritage site, believed to have been constructed in 3000BC, has always been a 'must see' attraction for visitors to the UK and it is hoped that it will remain so for visitors to the London 2012 Olympic Games this summer. (Photo by Matt Cardy/Getty Images)

Photo by Matt Cardy/Getty Images

At Stonehenge, a combination of dry weather and a groundskeeper's hose that was too short to water the grounds left ghostly outlines of parched grass, possibly revealing the monument’s history.