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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Tagsmarib

#marib

7 places carry this tag, across every kind and continent it appears in.

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Verified6 Widely accepted1 Contested0 Hypothetical0 Unverified0 Pseudoarchaeology0

2 places

Saddle dams

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Excavated

✓VerifiedUNESCO

🇾🇪 Yemen · Hydraulic works

Marib North Sluice & Northern Oasis Canal (Sadd Ma'rib al-Shamali)

Sabaean to Himyarite (8th c BCE–6th c CE) · Sabaean / Himyarite

North sluice of Great Dam of Ma'rib (750 BCE–575 CE) — 23-m cut-stone control feeding northern oasis.

✓VerifiedUNESCO

🇾🇪 Yemen · Hydraulic works

Marib South Sluice & Southern Oasis Canal (Jannat al-Janub)

Sabaean to Himyarite (7th c BCE–6th c CE) · Sabaean / Himyarite

South sluice of Great Dam of Ma'rib (7th c BCE–575 CE) — 18-m limestone control for the grand southern oasis.