About
Avebury is one of the greatest prehistoric monuments on earth — the world's largest stone circle, a Neolithic henge of extraordinary scale whose earthwork enclosure and standing stone circles so completely encompass the modern village of Avebury that houses, a pub, and a church sit within its boundaries. A UNESCO World Heritage Site, Avebury represents the highest achievement of Neolithic monument-building in Britain, constructed and modified over a period of several centuries roughly between 2850 and 2200 BC.
The Avebury henge consists of a massive circular earthwork — a bank approximately 1.4 kilometres in circumference enclosing a roughly circular area of about 11.5 hectares — dug from the natural chalk and piled into a broad bank that in places still stands several metres high. Inside the bank runs a deep ditch (originally 10 metres deep) and within the ditch stands the Outer Stone Circle: a ring of approximately 100 large sarsen standing stones, originally among the largest and most numerous stones of any prehistoric monument in Britain. Two smaller inner circles occupied the northern and southern halves of the enclosed area. Today, many stones are missing — toppled and buried by medieval inhabitants who feared the pagan monuments, or broken up in the 18th century for building material — but dozens remain upright, and the excavations of Alexander Keiller in the 1930s re-erected many buried stones, marking those now absent with concrete pillars.
At the heart of the English Heritage presence at Avebury is the Alexander Keiller Museum — housed in a 17th-century barn adjacent to the henge — which presents Keiller's extraordinary collection of finds from his excavations at Avebury, Windmill Hill, and other local prehistoric sites. The museum tells the story of both the monuments and the man who dedicated much of his life and fortune to excavating and understanding them. The galleries hold Neolithic pottery, tools, animal bones, and human remains from the monuments, alongside Keiller's meticulous excavation records and finds from his groundbreaking campaigns.
Note: the nearby Avebury Manor and garden is a separate National Trust property; this site covers the English Heritage henge monument and Alexander Keiller Museum. The henge itself is freely accessible at all times; the museum charges admission. EH members enter the museum free.
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Plan Your Visit
⏱️ Recommended Visit Duration
💡 Visitor Tips
- The henge is so large that a full circuit of the bank takes 45–60 minutes — allow more time than you think you need; most visitors underestimate the scale.
- Visit the Alexander Keiller Museum first to get the interpretive context before walking the monuments — it makes the stones and earthworks far more meaningful.
- The henge is always freely accessible, but the museum is the paid element; EH members should bring their membership cards.
- Avoid parking in the village — use the National Trust car park (signposted). The village lanes are narrow and parking within the henge boundary causes congestion.
- Walk the West Kennet Avenue south-east from the henge if time allows — even a short section with the alternating pillar and lozenge stones is remarkably evocative.
- The Red Lion pub inside the henge boundary is a genuinely unusual experience — eating and drinking within a prehistoric stone circle has few parallels anywhere in the world.
- Early morning visits (before 10am) allow you to experience the standing stones without the crowds that the site attracts at peak times.
- Combine with Silbury Hill viewpoint and West Kennet Long Barrow in a single day for the fullest experience of the Avebury World Heritage Site landscape.
Highlights
The Avebury Henge — World's Largest Stone Circle
The Avebury henge is the largest prehistoric stone circle in the world — a statement that requires a moment to absorb fully. The outer stone circle originally comprised approximately 100 massive sarsen standing stones set within a circular earthwork enclosure of approximately 11. 5 hectares, bounded by a bank and ditch.
The scale is so large that the entire village of Avebury — its houses, its church, its pub — sits inside the monument boundaries. Walking through the henge, visitors move between the standing stones of the outer circle while passing through an inhabited village, an entirely unique heritage experience.
The stones range from a few tonnes to over 40 tonnes in weight, and many display the natural sarsen shapes selected by Neolithic stone-seekers: tall pillar-like stones ('male' in Keiller's terminology) and broad diamond-shaped stones ('female') alternating around the circuit.
The Alexander Keiller Museum
Housed in a converted 17th-century threshing barn at Avebury, the Alexander Keiller Museum is the essential companion to the henge monument itself, providing detailed interpretation of the prehistoric landscape and the archaeology of the Avebury monuments.
The museum is named for Alexander Keiller — marmalade heir, archaeologist, aviator, and eccentric — who purchased Avebury in the 1930s and undertook the most extensive re-erection and excavation programme the monument had seen, restoring many fallen and buried stones to their upright positions.
The museum galleries present finds from Keiller's excavations including Neolithic pottery, flint tools, animal bones, and human skeletal remains, alongside objects from the wider Avebury landscape.
Displays explain the construction, phasing, and significance of the henge and its related monuments. The museum is the only place to understand in detail what Avebury's stones and earthworks represent.
The Henge Earthwork — Bank and Ditch
The earthwork enclosure of the Avebury henge — the bank and ditch that define its outer boundary — is among the most ambitious civil engineering projects of prehistoric Europe. The ditch was originally cut approximately 10 metres deep into the chalk bedrock using only antler picks and animal shoulder-blade shovels, and the chalk rubble excavated was piled into a broad external bank — the reverse of normal defensive earthwork design, suggesting the bank was for spectacle rather than defence.
Walking on top of the bank, which still survives to several metres in height in places, provides the best elevated view over the stone circles and the enclosed village.
The bank circuit is approximately 1. 4 kilometres in length, and walking its full extent gives a powerful impression of the monument's scale.
The Kennet and Beckhampton Avenues
The Avebury henge was connected to the wider prehistoric landscape by two avenues of standing stones — the West Kennet Avenue, leading south-east from the henge to the Sanctuary monument on Overton Hill (1. 5 miles), and the Beckhampton Avenue, leading south-west. The West Kennet Avenue preserves the most complete run of surviving stones, with many pairs of the alternating pillar and diamond-shaped sarsens still upright along approximately 2.
5 kilometres of the route. Walking the Kennet Avenue from the henge to its end at the Sanctuary is one of the most rewarding prehistoric landscape walks in England, following a processional route that may have been used for ceremonial processions between the henge and outlying monuments. Alexander Keiller partially restored this avenue in the 1930s, re-erecting fallen stones and marking missing stone positions.
Collections
The Alexander Keiller Museum holds one of the most important archaeological collections associated with any prehistoric monument site in Britain. The collections include Neolithic pottery (including fine Windmill Hill ware and Grooved Ware from the henge ditch), polished and worked flint tools, animal bones from Neolithic feasting deposits, human skeletal remains from burials within the henge, bronze objects from later prehistoric use of the site, and the complete finds and records from Keiller's 1930s excavation campaigns.
Interpretive displays explain the chronology and construction of the henge, the significance of the associated monuments (Silbury Hill, West Kennet Long Barrow, the avenues), and Keiller's archaeological methods and legacy.
The museum collections complement the open-air monument with detailed material evidence for the prehistoric activities conducted at Avebury over more than two thousand years.
Alexander Keiller Museum
Permanent galleries covering the archaeology of Avebury and the wider World Heritage Site landscape, with finds from Keiller's excavations and interpretive displays on the henge monuments.
The Avebury Henge — Open-Air Monument
The world's largest prehistoric stone circle — henge earthwork, outer stone circle, two inner circles, and the Cove — freely accessible within the village of Avebury.
Current Exhibitions
No current exhibitions. Please check the museum website for updates.