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 flood controls in Iraq · Mysteria

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Partially excavated flood controls in Iraq

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Flood controls 🇮🇶 Iraq Partially excavated Clear all

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🇮🇶 Iraq · Hydraulic works

Nahrwan Canal — Sasanian Flood Canal of Ctesiphon (Nahrawan)

Sasanian to Early Abbasid (550–937 CE) · Sasanian Persian (Khosrow I) with Islamic early maintenance

6th-c. Sasanian 120-km 30-m flood-canal protecting Ctesiphon, intake at Dur-Kurigalzu 240-m regulator, 30k ha Diyala.