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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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Places tagged hydraulic concrete · Mysteria

Tagshydraulic-concrete

#hydraulic concrete

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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🇮🇱Israel1

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Excavation ongoing1

1 place

🇮🇱 Israel · Submerged site

Caesarea Maritima – Herod's Sebastos Harbour

Herodian to Crusader (22 BCE – 1265 CE) · Judean / Roman / Byzantine / Crusader

Herod's colossal Roman harbour Sebastos now submerged 5 m; one of earliest hydraulic-concrete harbours.