🇬🇧 United Kingdom · Megalith
Unstan Chambered Cairn
Early Neolithic · Unstan Ware Neolithic
Eponymous stalled cairn at Stenness — 8.4 m five-compartment chamber where Unstan Ware was first identified.
🇬🇧 United Kingdom · Megalith
Cuween Hill Chambered Cairn
Late Neolithic · Grooved Ware Neolithic (Maeshowe group)
Maeshowe-type cairn on hill above Firth with 5 m crawl passage to chamber containing human and dog skulls.
🇬🇧 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
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
Tullochs of Assery Chambered Cairns
Early Neolithic (c.3800–3300 BCE) · Orkney-Cromarty Neolithic (Caithness)
Paired Loch Calder chambered cairns (round and long horned) rescued before reservoir flooding, with classic Orkney-Cromarty chambers.
🇬🇧 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 · Megalith
Pettigarths Field Cairn
Middle Neolithic · Shetland Neolithic
Heel-shaped chambered cairn on Whalsay, 15 m, part of Yoxie settlement complex, c.3500 BCE.