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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Underground cities tagged “phrygian”

1 place 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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✓VerifiedUNESCO

🇹🇷 Turkey · Underground city

Kaymaklı Underground City

Hittite to Byzantine · Phrygian / Byzantine

Second major Cappadocian underground city, 8 levels open to tourists, rolling doors, stables, wine storage, connected to Derinkuyu via tunnel.