🇬🇧 United Kingdom · Megalith
The Bridestones Chambered Cairn
Early Neolithic (c.3800–3500 BCE) · Cotswold-Severn Neolithic
Ruined 110 m long Cotswold-Severn chambered cairn on Cheshire border — four portal stones survive of vast ridge cairn.
🇬🇧 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
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
Stoney Littleton Long Barrow
Early Neolithic (~3750 BCE) · Cotswold-Severn Neolithic
One of Somerset's finest Severn-Cotswold tombs extending 30 m with a distinctive trapezoidal mound and seven lateral chambers opening from a central passage.
🇬🇧 United Kingdom · Megalith
Lanyon Quoit
Early Neolithic · Penwith Early Neolithic
Penwith portal dolmen — 5.5 m capstone (12 t) on three 1.5 m uprights, collapsed 1815 and reset lower.
🇬🇧 United Kingdom · Megalith
Hetty Pegler's Tump (Uley Long Barrow)
Early Neolithic · Cotswold-Severn
Cotswold-Severn long barrow on Uley escarpment, 37 m with transepted chambers, c.3750 BCE.