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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Excavated world heritage places tagged “ohio”

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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Verified40 Widely accepted2 Contested3 Hypothetical0 Unverified0 Pseudoarchaeology0

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Geoglyphs

UNESCO World Heritage

🇺🇸 United States · Earthwork

Fort Ancient Earthworks

Hopewell 1–450 CE · Hopewell tradition

Largest hilltop enclosure: 40 ha with 67 gateways, Hopewell 1–450 CE, UNESCO 2023.

✓VerifiedUNESCO

🇺🇸 United States · Earthwork

Hopewell Culture National Historical Park (Mound City Group)

Hopewell 1–500 CE (Middle Woodland, peak 100–400 CE) · Hopewell tradition (Scioto Hopewell)

Finest Hopewell enclosure: 13-acre (5.3 ha) flat-topped earthen-walled enclosure (1,211 m perimeter, 1–1.8 m high) near Scioto River enclosing 24 conical, elongated and effigy mounds.