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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 house

Thaumatica
Libra Esoterica
UAP Nexus
Aletheca
Lonely Island

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The catalogue

World Heritage, excavation ongoing reservoirs

3 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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Verified18 Widely accepted2 Contested0 Hypothetical0 Unverified0 Pseudoarchaeology0

Category

Hydraulic works20 Reservoirs20 Ancient cities2 Archaeological wonders2 Aqueducts1 Cistern cities

Country

🇮🇳India9 🇧🇬Bulgaria5 🇯🇴Jordan2 🇰🇭Cambodia2 🇱🇰Sri Lanka1

Heritage

UNESCO World Heritage only

Excavation

Partially excavated9 Excavated5 Excavation ongoing5 Unexcavated1

Tags

hydraulic15 harappan7 thracian5 unesco4 angkor1 anuradhapura1 aqueduct

3 places

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🇸🇦Saudi Arabia

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Reservoirs

UNESCO World Heritage

Excavation ongoing

✓VerifiedUNESCO

🇰🇭 Cambodia · Hydraulic works

West Baray — Angkor Hydraulic Reservoir

Angkor (Baphuon style middle Angkor) · Khmer Hindu (Suryavarman I court)

Khmer 7.8×2.1 km reservoir 1050 CE 53 million m³ with West Mebon island temple, hydraulic empire core.

✓VerifiedUNESCO

🇮🇳 India · Hydraulic works

Dholavira Reservoirs — Harappan Urban Hydraulics

Harappan (Early to Late Harappan 3000–1800 BCE) · Harappan (Indus Valley Civilization Kotada Timba)

Harappan desert city 16 rock-cut reservoirs and dam-fed canals 3000–1800 BCE on Kutch island.

✓VerifiedUNESCO

🇮🇳 India · Hydraulic works

Hampi Aqueduct and Tungabhadra Hydraulic System

Medieval Indian (Vijayanagara Empire) · Vijayanagara Hindu imperial (Telugu–Kannada)

Vijayanagara 5-km aqueduct with 19 tanks and stepped pushkarani feeding 500k city 14th–16th c.