Its inner ring of smaller stones was dragged some 250 km from the Preseli Hills in Wales
The bluestones; one Welsh circle at Waun Mawn may have been dismantled and moved wholesale
Geography · Landmarks & wonders
c. 3000–2000 BC
England — Salisbury Plain, Wiltshire
The most sophisticated prehistoric stone circle in the world: a ring of dressed sarsen uprights capped with lintels locked on by mortise-and-tenon joints, with smaller Welsh bluestones inside, set at the centre of a vast Neolithic and Bronze Age ritual landscape. It is aligned on the midsummer sunrise and the midwinter sunset, and after a century of excavation its purpose is still argued over.
Its inner ring of smaller stones was dragged some 250 km from the Preseli Hills in Wales
The bluestones; one Welsh circle at Waun Mawn may have been dismantled and moved wholesale
Its huge sarsen uprights came from West Woods, about 26 km to the north (2020)
A geochemical study matched a core taken in 1958 and returned in 2018 to that quarry
Its lintels are locked onto the uprights by mortise-and-tenon joints — woodworking done in stone
The lintels are also tongue-and-grooved to each other and subtly curved to follow the circle
Its axis points to sunrise at the summer solstice and sunset at the winter solstice
The Heel Stone stands outside the circle on the solstitial axis
In 2024 its recumbent Altar Stone was traced to north-east Scotland, over 700 km away (2024)
Published in Nature; it had long been assumed to be Welsh
Its pairs of vast uprights joined by a single lintel are called trilithons
Five stood in a horseshoe inside the outer circle
John Aubrey and William Stukeley linked it to the druids — several thousand years too late
It was already ancient when the Celtic druids appear in the record