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

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Tagsetruscan-channel

#etruscan channel

1 place carries this tag, across every kind and continent it appears in.

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Verified1 Widely accepted0 Contested0 Hypothetical0 Unverified0 Pseudoarchaeology0

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Ancient cities1 Harbour complexes1 Submerged sites1

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✓Verified

🇮🇹 Italy · Submerged site

Cosa – Tagliata Etruscan–Roman Harbour & Spacco della Regina

Etruscan to Medieval (273 BCE colony – 1320 CE sack) · Etruscan / Roman Republican / Imperial

Etruscan-cut Tagliata channel port — 70 m rock-cut harbour canal now tidal 0–1 m, Rome earliest colony harbour.