About Stonehenge — History, Facts & Mysteries
One of the world's most recognisable prehistoric monuments, Stonehenge has captivated visitors, scholars, and mythmakers for millennia. Here is everything you need to know.
What Is Stonehenge?
Stonehenge is a prehistoric stone circle monument located on Salisbury Plain in Wiltshire, England, near the town of Amesbury. It sits at postcode SP4 7DE, approximately 85 miles (137 km) south-west of London and 8 miles (13 km) north of Salisbury.
The monument consists of a circular setting of large standing stones, each around 4 metres (13 ft) high, 2.1 metres (6.9 ft) wide, and weighing approximately 25 tonnes. The upright stones are topped with horizontal lintel stones, creating the distinctive trilithon arches that are immediately recognisable across the world.
At its heart stands the Altar Stone, a large block of green sandstone. Surrounding the central stone circle is a series of earthworks including a ditch, a bank, and a series of filled pits known as Aubrey Holes. The Heel Stone stands outside the main circle to the north-east, aligned with the midsummer sunrise.
The outer ring of stones — the sarsens — came from Marlborough Downs approximately 25 miles (40 km) to the north. The smaller inner stones, known as bluestones, were transported from the Preseli Hills in south-west Wales, over 150 miles (240 km) away. How Neolithic peoples moved these enormous stones remains one of archaeology's great puzzles.
Stonehenge at a Glance
Who Built Stonehenge — and When?
Stonehenge was not built in a single phase. Archaeological evidence reveals a complex, multi-stage construction spanning roughly 1,500 years, from around 3000 BC to 1500 BC — the Neolithic and early Bronze Age periods. No single people "built" Stonehenge; successive generations shaped and reshaped it over many centuries.
Phase 1 — c. 3000 BC (Late Neolithic)
The earliest phase involved digging a large circular ditch and bank enclosure, with a ring of 56 pits (Aubrey Holes) around the inside edge. These pits were later used for cremation burials, making Stonehenge one of Britain's earliest known cemeteries. The Heel Stone was also erected at this time.
Phase 2 — c. 2500 BC
The first stones were erected: the smaller bluestones from Wales, arranged in a double arc. This phase also saw the construction of the Avenue — a ceremonial processional route leading from the River Avon to the monument. The Beaker people, who arrived in Britain around this time, may have played a significant role.
Phase 3 — c. 2300–1500 BC (Early Bronze Age)
The massive sarsen stones from Marlborough Downs were transported and erected in the horseshoe and outer circle arrangement that is most familiar today. The lintels were fitted using mortise and tenon joints — a carpentry technique applied to stone. Subsequent phases saw the bluestones rearranged multiple times before reaching their current configuration.
The builders had no written language and left no records. What we know comes entirely from archaeological investigation: excavations, radiocarbon dating, isotope analysis of human remains, and geophysical surveys. The people responsible were Neolithic and Bronze Age farming communities — part of a wider European prehistoric culture that erected stone monuments across Britain, Ireland, Brittany, and beyond.
Why Was Stonehenge Built? The Main Theories
The purpose of Stonehenge remains one of archaeology's most debated questions. No single theory is universally accepted, and it is likely that the monument served multiple functions across its long history of use.
Astronomical Calendar
The most widely cited theory holds that Stonehenge functioned as a sophisticated astronomical calendar. The monument is precisely aligned with the movements of the sun. At midsummer (the summer solstice, around 21 June), the rising sun aligns exactly with the Heel Stone and shines directly into the heart of the monument. At midwinter (the winter solstice, around 21 December), the setting sun aligns with the central trilithon.
These alignments are too precise to be accidental. Researchers believe Stonehenge may have been used to track the seasons and mark important agricultural and ceremonial dates throughout the year. A 2022 study proposed that the monument could even function as a solar calendar of 365.25 days. The winter solstice alignment may have held particular importance, as midwinter marked the point at which the days began to lengthen again — a profound moment for a farming community.
Burial Site and Ancestral Monument
Excavations have revealed that Stonehenge was a major cremation cemetery. Researchers have identified the cremated remains of at least 63 individuals buried within the monument, dating from around 3000 BC through to the period when the sarsen stones were erected. The burials include both men and women of varying ages.
Isotope analysis of the remains suggests that some individuals originated from west Wales — the same region from which the bluestones were quarried. This has led archaeologists to propose that Stonehenge was a monument to the ancestors, and perhaps a place where the living communicated with the dead. The Avenue connecting Stonehenge to the River Avon may have served as a processional route for bringing the deceased to their final resting place.
Healing Site — The Lourdes of Prehistoric Britain
A compelling theory championed by archaeologists Timothy Darvill and Geoffrey Wainwright proposes that Stonehenge was a prehistoric place of healing — a Neolithic Lourdes. Analysis of human remains found at Stonehenge and in its vicinity shows a higher than expected proportion of individuals who had suffered illness, injury, or disease, including several who had travelled long distances before death.
The bluestones from the Preseli Hills in Wales may have been considered to have special curative powers. Welsh folk tradition holds that the waters that ran over these stones had healing properties. If so, Stonehenge may have been a destination for pilgrims seeking cures — the enormous effort of transporting bluestones across land and sea justified by the belief in their miraculous power.
UNESCO World Heritage Status
Stonehenge was inscribed as a UNESCO World Heritage Site in 1986, alongside the nearby monument complex of Avebury. The designation was not given to Stonehenge alone, but to the wider "Stonehenge, Avebury and Associated Sites" — reflecting the understanding that Stonehenge is part of a much larger prehistoric ritual landscape.
The inscription recognises the Outstanding Universal Value of the monuments, citing their importance to our understanding of prehistoric Europe. The World Heritage Site covers approximately 5,000 hectares across Wiltshire and includes Stonehenge, Avebury stone circle, and dozens of associated monuments including barrows, enclosures, and avenues.
UNESCO's recognition has driven significant conservation and landscape management efforts. English Heritage, which manages Stonehenge, works to protect the monument from erosion, manage visitor access, and ensure the wider landscape is conserved for future generations. The site's World Heritage status is taken seriously: a proposed road tunnel under the A303 near Stonehenge has been subject to intense scrutiny over its potential impact on buried archaeology.
The Wider Prehistoric Landscape
Stonehenge does not stand alone. It is part of a dense concentration of prehistoric monuments spread across Salisbury Plain and the surrounding chalk downs — a landscape shaped by Neolithic and Bronze Age peoples over thousands of years.
Avebury
Located about 25 miles (40 km) north of Stonehenge, Avebury contains the largest megalithic stone circle in the world. Unlike Stonehenge, the village of Avebury actually sits within the henge. The site includes a great circle of 98 standing stones and two smaller inner circles. Avebury shares UNESCO World Heritage status with Stonehenge and is managed by the National Trust.
Durrington Walls
Just 2 miles (3 km) north-east of Stonehenge, Durrington Walls is one of the largest known Neolithic settlements in Britain. The site contained timber circles and large quantities of pig and cattle bones, suggesting it was a place of feasting and celebration — possibly the living complement to the dead landscape at Stonehenge. The settlement may have housed the workers who built Stonehenge.
Woodhenge
Located adjacent to Durrington Walls, Woodhenge is a Neolithic monument consisting of six concentric rings of timber posts — a wooden precursor or companion to Stonehenge's stone circles. The posts are now marked by concrete stumps. At the centre of the monument, the skeleton of a child was found, buried with a deliberately split skull, suggesting ritual sacrifice.
The Cursus and Barrows
The Stonehenge Cursus is a long rectangular earthwork enclosure stretching nearly 3 kilometres to the north of Stonehenge. Its purpose remains unknown. The surrounding landscape is also dotted with hundreds of burial mounds (barrows) from the Neolithic and Bronze Age, many of which can be seen from the stones themselves on a clear day.
Stonehenge Today
Stonehenge is managed by English Heritage, the charity that cares for over 400 of England's historic monuments. The organisation took over the management of Stonehenge from English Heritage (Government agency) when it became a charity in 2015. English Heritage is responsible for the conservation of the stones, the operation of the Visitor Centre, and the management of the surrounding landscape in partnership with the National Trust.
The Stonehenge Visitor Centre, opened in 2013 to replace the heavily criticised former facilities at the roadside, sits about 1.5 miles from the stones. It houses a substantial museum and exhibition covering Neolithic life, the construction of Stonehenge, and the archaeology of the surrounding landscape. A fleet of shuttle buses (included in admission) connects the Visitor Centre to the stones; visitors may also walk along the historic route of the Avenue.
Stonehenge attracts approximately 1.5 million visitors per year, making it one of Britain's most visited attractions. Timed entry tickets are required and must be booked in advance — walk-up visits are not permitted. The path around the stones is on a hard surface and is wheelchair accessible.
Each year at the summer and winter solstices, English Heritage opens Stonehenge for free access during the hours around sunrise and sunset, when thousands gather to mark the astronomical events that the monument was likely designed to celebrate. At these times, visitors are permitted within the stone circle itself — an experience otherwise reserved for special access tours.