🇬🇧 United Kingdom · Megalith
Midhowe Chambered Cairn
Early–Middle Neolithic (c.3500 BCE) · Orkney-Cromarty Neolithic
23 m stalled chambered cairn — Orkney's longest — with 12 compartments and remains of 25 Neolithic burials.
🇬🇧 United Kingdom · Megalith
Unstan Chambered Cairn — Stenness, Orkney
Early Neolithic (c.3600–3200 BCE) · Orcadian Neolithic (Unstan Ware)
Unstan cairn (c.3600–3200 BCE, Early Neolithic) is a unique hybrid stalled-Orkney-Cromarty chambered cairn on a Loch of Stenness promontory 2 mi NE of Stromness, 13 m long dividing into five stalls…
🇬🇧 United Kingdom · Megalith
Mousa Broch
Iron Age (c.300–100 BCE) · Atlantic Iron Age (Shetland)
World's tallest surviving broch (13.3 m), perfectly preserved Iron Age tower on uninhabited Mousa island.
🇬🇧 United Kingdom · Megalith
The Sanctuary (Overton Hill)
Late Neolithic – Early Bronze Age · Windmill Hill / Wessex Neolithic
Timber-then-stone double circles (40 m outer) at SE end of West Kennet Avenue — Avebury's mortuary terminus.
🇬🇧 United Kingdom · Megalith
King Arthur's Stone (Herefordshire)
Early Neolithic · Cotswold-Severn
32-tonne Herefordshire Cotswold-Severn tomb — nine uprights under 25 m mound on Golden Valley ridge.
🇬🇧 United Kingdom · Megalith
Mine Howe
Iron Age (c.100 BCE–400 CE) · Atlantic Iron Age (Orcadian) / possible Roman contact
Iron Age underground sanctuary in Tankerness with 29-step stair descending 7.5 m to a corbelled chamber.
🇬🇧 United Kingdom · Megalith
Grey Cairns of Camster
Neolithic (c.3500–3000 BCE) · Orkney-Cromarty Neolithic (Caithness)
Flow Country pair of vast Orkney-Cromarty cairns — 60 m long horned cairn with two chambers and intact round cairn.
🇬🇧 United Kingdom · Megalith
Knowes of Trotty — Harray, Orkney
Early Bronze Age (c.2000–1500 BCE) · Orcadian Early Bronze Age (Beaker–Food Vessel)
The Knowes of Trotty (Early Bronze Age c.2000–1800 BCE) is a 1.5-m high burnt mound cemetery of 8 low barrows on the Harray lochside, famous 1858 excavation by George Petrie yielding the richest…
🇬🇧 United Kingdom · Megalith
Temple Wood Stone Circles
Late Neolithic – Early Bronze Age · Kilmartin Late Neolithic / Early Bronze Age
Paired Kilmartin circles (13 m and 12 m) tracing timber-to-stone transition c.3000–1000 BCE.
🇬🇧 United Kingdom · Megalith
Birkrigg Stone Circle — Urswick, Cumbria
Late Neolithic to Early Bronze Age (c.2500–1700 BCE) · Cumbrian Late Neolithic–Bronze Age (Beaker)
Birkrigg stone circle (Late Neolithic–Early Bronze Age c.2500–1700 BCE), also called the Druid's Temple, is a double concentric circle 26 m outer and 9 m inner on Birkrigg Common limestone moor 2 mi…
🇬🇧 United Kingdom · Megalith
Beaghmore Stone Circles
Early to Middle Bronze Age · Ulster Early Bronze Age (Beaker influenced)
Seven Bronze Age circles (10–20 m), cairns and dragon's teeth row (800 stones) on Sperrin edge, peat-sealed.
🇬🇧 United Kingdom · Megalith
Knockmany Passage Tomb (Annia's Cove)
Late Neolithic · Boyne / Loughcrew tradition (western outlier)
Hilltop 15 m passage tomb with three decorated stones (spirals/lozenges) — westernmost Boyne-style tomb in Ulster.
🇬🇧 United Kingdom · Megalith
Eynhallow Chambered Cairn — Eynhallow Island
Late Neolithic (c.3200–2800 BCE, Norse reuse 12th c. CE) · Orcadian Neolithic (Grooved Ware) + Norse
Eynhallow chambered cairn (Maeshowe-type, c.3200–2800 BCE) is a 17-m Orkney-Cromarty stalled cairn on the uninhabited tidal island of Eynhallow in Eynhallow Sound, built of flagstone slabs with three…
🇬🇧 United Kingdom · Ancient village
Old Scatness Broch and Iron Age Village
Iron Age to Medieval (c.400 BCE–1400 CE) · Atlantic Iron Age / Pictish / Norse
Iron Age broch village opposite Jarlshof with Pictish and Viking layers; one of Scotland's largest modern excavations.
🇬🇧 United Kingdom · Megalith
Wideford Hill Chambered Cairn
Early Neolithic · Orkney-Cromarty Neolithic
Triple-walled Orkney-Cromarty cairn near Kirkwall with 4.5 m passage to tripartite corbelled chamber.
🇬🇧 United Kingdom · Megalith
Callanish Satellite Complex
Late Neolithic to Early Bronze Age (~3000–1500 BCE; Callanish I ~2900 BCE, satellites 2000–1500 BCE) · Late Neolithic Hebridean (Grooved Ware to Beaker)
Six stone circles and ellipses arrayed within 1.5 km of the Calanais I cross-shaped megalith – primary in the database – extend the main alignment: Callanish II (stone ellipse of 7 slabs), Callanish…
🇬🇧 United Kingdom · Megalith
Duddo Five Stones — Northumberland
Early Bronze Age (c.2000–1800 BCE) · British Early Bronze Age (Collared Urn)
Duddo Five Stones (Early Bronze Age c.2000 BCE) is a 10-m sandstone circle on a low rise 4 mi south of the Scottish border, with five soft, deeply weathered pillars up to 2.3 m tall standing in a…
🇬🇧 United Kingdom · Megalith
Swinside Stone Circle (Sunkenkirk)
Late Neolithic · Late Neolithic Cumbria (Langdale axe trade area)
55-stone porphyritic circle (28.6 m) above Duddon estuary — best preserved in North-West England.
🇬🇧 United Kingdom · Megalith
Stanydale Temple
Late Neolithic – Early Bronze Age · Shetland Late Neolithic / Beaker
Shetland's largest Neolithic hall — 12×7 m heel-cairn hall with 3 m thick walls, c.2500 BCE.
🇬🇧 United Kingdom · Archaeological wonder
Star Carr Mesolithic Settlement
Early Mesolithic (~9000–8500 BCE) · Early Mesolithic British (Maglemosian)
Peat-preserved lake-shore settlement at Lake Flixton where Grahame Clark in 1949–51 uncovered a 12-m timber platform of split birch, 21 red deer antler frontlets drilled for wearing as headdresses,…
🇬🇧 United Kingdom · Megalith
Slieve Gullion Passage Tombs
Middle Neolithic to Bronze Age · Irish Passage Tomb / Bronze Age
Summit and north passage tombs on Slieve Gullion (573 m), south cairn cruciform, Bronze Age kerb reuse, c.3500 BCE.
🇬🇧 United Kingdom · Megalith
Midhowe Broch
Iron Age (c.200 BCE–200 CE) · Atlantic Iron Age (Orcadian)
Finely preserved Rousay broch on Eynhallow Sound with intramural galleries and adjacent chambered cairn.
🇬🇧 United Kingdom · Megalith
Cuween Hill Chambered Cairn — Firth, Orkney
Late Neolithic (c.3200–2900 BCE) · Orcadian Neolithic (Grooved Ware)
Cuween Hill cairn (c.3200–2900 BCE) is a Maeshowe-type chambered cairn 21 m diameter crowning Cuween Hill above Kirkwall, with a 8-m low entrance passage leading to a 6-m central chamber with four…
🇬🇧 United Kingdom · Megalith
The Hurlers Stone Circles
Early to Middle Bronze Age · Bodmin Moor Bronze Age
Triple line of three Bronze Age granite circles (33–41.5 m) on Bodmin Moor with paired outlying stones.