Use of ground penetrating radar has enable archaeologists to identify what has been described as the largest intact prehistoric monument ever built in Britain.
The Durrington Walls “superhenge” is formed by up to 90 standing stones and is located 3km from Stonehenge.
The site has been subject of a five year research project by the Stonehenge Living Landscapes team.
Lead researcher, Vince Gaffney said the stones were “lost to archaeology” but found thanks to modern technology.
The Stonehenge Hidden Landscapes Project team, using non-invasive geophysical prospection and remote sensing technologies, has now discovered evidence for a row of up to 90 standing stones, some of which may have originally measured up to 4.5m in height.