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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Partially excavated passage tombs

2 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.

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Verified11 Widely accepted0 Contested0 Hypothetical0 Unverified0 Pseudoarchaeology0

2 places

armorican early neolithic1

Passage tombs

🇬🇧 United Kingdom · Megalith

Knockmany Passage Tomb (Annia's Cove)

Late Neolithic · Boyne / Loughcrew tradition (western outlier)

Hilltop 15 m passage tomb with three decorated stones (spirals/lozenges) — westernmost Boyne-style tomb in Ulster.

✓VerifiedUNESCO

🇮🇪 Ireland · Megalith

Dowth

Neolithic · Boyne Valley Neolithic

Westernmost of three great Brú na Bóinne tombs, 85 m diameter, two passages and souterrain. Less restored, preserving original form. Associated winter sunset alignment.