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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CountriesYE

Yemen

39 places in the atlas, 14 of them inscribed as UNESCO World Heritage.

Kinds found here

Hydraulic works26
Dams13
Archaeological wonders11
Ancient cities7
Earthworks6
Ancient ports3
Geoglyphs2
Petroglyphs2
Rock art sites2
Submerged sites2
Aqueducts1
Barrages1

How well established

Verified34
Accepted4
Hypothetical1

Top regions

Hadramawt6
Marib Governorate5
Hadramaut2
Ma'rib Governorate2
Al Bayda Governorate, Wadi Rada, Ba'ta village near Rada1
Al Hudaydah Governorate, Wadi Zabid Delta, Tihama Plain1

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Verified34 Widely accepted4

Hadhramaut Governorate, Shibam Hinterland, Wadi Rahwah1

Hadhramaut, Bir Ali1

Hadhramaut, Shabwah1

Hadramawt Governorate, Wadi Jirdan East branch, Shabwa–Hadramawt spate outlet 120 km northeast of Mukalla (East Jirdan spate plain)1

Hadramawt Governorate, Wadi Jirdan tributary of Wadi Hadramawt1

Hadramawt Governorate, Wadi Jirdan west distributary 4 km upstream of Shabwa paleo-delta1

Contested

Hypothetical1

Unverified0

Pseudoarchaeology0

Heritage

UNESCO World Heritage only

Excavation

Partially excavated17 Excavated10 Excavation ongoing7 Unexcavated3 Buried1 Submerged1

2 places

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≈AcceptedUNESCO

🇾🇪 Yemen · Hydraulic works

Marib Great Dam North Sluice Annex — Southern Extension

Early South Arabian (800 BCE-600 CE) · Sabaean

Marib Great Dam North Sluice Annex — Southern Extension in Marib Governorate, Yemen is a Early South Arabian (800 BCE-600 CE) hydraulic attributed to Sabaean.

≈

Accepted

UNESCO

🇾🇪 Yemen · Hydraulic works

Reservoir of Little-Hunstanton

Chalcolithic (4500–3300 BCE) · Chalcolithic

Reservoir of Little-Hunstanton in Hadramawt, Yemen is a Chalcolithic (4500–3300 BCE) hydraulic attributed to Chalcolithic culture.