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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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The catalogue

World Heritage places tagged “wadi”

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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Verification

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Verified8 Widely accepted0 Contested0 Hypothetical0 Unverified0 Pseudoarchaeology0

Category

Archaeological wonders6 Hydraulic works4 Earthworks2 Ancient ports2 Ancient cities1 Dams1

Country

🇪🇬Egypt5 🇾🇪Yemen2 🇱🇾Libya1

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Heritage

UNESCO World Heritage only

Excavation

Partially excavated3 Excavated2 Unexcavated1 Buried1 Not applicable1

Tags

wadi8 hydraulic3 old kingdom3 oldest dam3 helwan2 dam1 egypt1 garawi

2 places

Rock art sites1

Submerged sites1

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1

UNESCO World Heritage

✓VerifiedUNESCO

🇪🇬 Egypt · Archaeological wonder

Wadi Al-Hitan (Whale Valley)

Eocene (40 Ma; geological) — cultural use prehistoric camp spots · No culture — paleontological site plus subneolithic camp scatters

Eocene whale mass-grave Wadi Al-Hitan with 400 Basilosaurus skeletons showing hind legs.

✓VerifiedUNESCO

🇾🇪 Yemen · Hydraulic works

Marib Dam

Sabaean Kingdom, Early South Arabian (~1750 BCE – 570 CE) · Sabaean (South Arabian, Kingdom of Saba)

Earthfill diversion dam spanning the Wadi Adhanah and flanked by the limestone North and South Sluices with Sabaean monumental inscriptions.