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

Search Mysteria

Search places, or jump to a section

The catalogue

Verified places tagged “double chamber”

1 place 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

Clear all

Verification

Pick several

Verified1 Widely accepted0 Contested0 Hypothetical0 Unverified0 Pseudoarchaeology0

1 place

Verified

#double-chamber

Clear all

✓Verified

🇬🇧 United Kingdom · Megalith

Dyffryn Ardudwy Burial Chamber

Early to Middle Neolithic · Irish Sea Neolithic

Double portal dolmen in Snowdonia foothills with two capstones sharing a mound near Cardigan Bay.