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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Partially excavated hydraulic works matching “Petén”

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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Verified366 Widely accepted143 Contested3 Hypothetical5 Unverified0 Pseudoarchaeology0

3 places

Earthworks

🇵🇪Peru

“Petén”Hydraulic works Partially excavated Clear all

✓Verified

🇲🇽 Mexico · Ancient city

Edzná

Maya Classic (Puuc) · Maya (Puuc/ Petén)

Edzná — hydraulic capital with Five Stories Pyramid.

✓Verified

🇲🇽 Mexico · Ancient city

Lagartero

Classic Maya Late Classic 300–900 CE · Maya (Lakamtuun polity)

Island Maya city on karst lakes: 30 islands linked by causeways with temple islets and raised fields.

✓Verified

🇲🇽 Mexico · Ancient city

Uaymil Island Maya Port

Terminal Classic – Postclassic (900–1520 CE) · Maya (Putún-Chontal / Campeche coast)

Postclassic salt–shell island port (900–1520 CE) on Uaymil sand barrier island north of Jaina, 25 km offshore Campeche mangroves: 20 low platforms 1–2 m high with columned halls, oratories and…