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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Places tagged “hydraulic” matching “Poland”

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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Verified220 Widely accepted136 Contested3 Hypothetical0 Unverified0 Pseudoarchaeology0

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🇬🇧United Kingdom

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“Poland”

🇵🇱 Poland · Hydraulic works

Augustów Canal

The Augustów Canal (Polish: Kanał Augustowski, [ˈkanau̯ au̯ɡusˈtɔfski], Belarusian: Аўгустоўскі канал, romanized: Aŭhustoŭski kanal) is a cross-border canal built by the Congress Kingdom of Poland in…