Atlas Places Categories Resources Discuss

An atlas of Earth’s mysterious places — megaliths, pyramids, lost and sunken cities — with the evidence shown plainly: what is verified, what is contested, and what is still unknown.

Data CC BY-SA 4.0 · Photos per credit

Explore

Atlas map
All places
Categories
Countries
Contested & pseudo

Community

Theories & discussion
Lists
News & resources
Submit a resource

Mysteria

About the atlas
Data & verification
Licenses & credits
Create an account

© 2026 Mysteria. Exploring the ancient world.Map © OpenFreeMap · OpenMapTiles · OpenStreetMap contributors

Search Mysteria

Search places, or jump to a section

The catalogue

Partially excavated places tagged “long cairn”

4 places to sift through. Narrow by kind, country, period or how firmly each one is established — contested and pseudoarchaeological claims are labelled here, never hidden.

Filters

Verification

Pick several

Verified7 Widely accepted0 Contested0 Hypothetical0 Unverified0 Pseudoarchaeology0

Category

Megaliths7 Chambered tombs3 Chambered cairns2 Dolmens1

All categories →

Country

🇬🇧United Kingdom7

All countries →

Heritage

UNESCO World Heritage only

Excavation

Partially excavated4 Excavated3

Tags

long cairn7 neolithic5 orkney cromarty3 caithness2 chambered tomb2 early neolithic2 round cairn2 anglesey

4 places

1

chambered cairn1

coastal erosion1

cotswold severn1

Partially excavated

🇬🇧 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

Presaddfed Burial Chamber

Early Neolithic (c.3800–3600 BCE) · Neolithic Anglesey

Twin Neolithic chamber tombs in single long cairn near Presaddfed — west chamber with 5 m capstone best preserved.

🇬🇧 United Kingdom · Megalith

Knowe of Lairo Chambered Cairn

Early Neolithic · Orkney-Cromarty Neolithic

Horned long stalled cairn 50 m long on Rousay, c.3600 BCE.

🇬🇧 United Kingdom · Megalith

Point of Cott Chambered Cairn

Early Neolithic · Orkney-Cromarty Neolithic

Coastal long stalled cairn on Westray eroding at Point of Cott, c.3600 BCE.