A circle of prehistoric shafts dug thousands of years ago has been discovered two miles from Stonehenge.
Analysis of the 20 or more shafts suggests the features are Neolithic and excavated more than 4,500 years ago - around the time the nearby ancient settlement of Durrington Walls was built.
The shafts, around more than 10 metres in diameter and five metres deep, form a circle of more than 1.2 miles around the Durrington Walls and Woodhenge monuments on Salisbury Plain, near Amesbury in Wiltshire.
Archaeologists believe the shafts may have served as a boundary to a sacred area connected to the henge enclosure and to guide worshippers to the monuments.