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.

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Verified, partially excavated places tagged “grooved”

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Verified5 Widely accepted2 Contested0 Hypothetical0 Unverified0 Pseudoarchaeology0

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Chambered cairns

Neolithic settlements1

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Verified Partially excavated #grooved Clear all

✓Verified

🇬🇧 United Kingdom · Megalith

Cairn of Get

Late Neolithic · Grooved Ware / Orcadian Neolithic

Orkney-Cromarty chambered cairn on Rousay flank, excavated by Henshall, with stalled chamber and partition slabs, containing Neolithic human bone and pottery.