Sci. Ch. - Underground Marvels Series 1 (2019) Part 3 Secrets of the Terror Tunnels

Underground Marvels Series 1 Part 3 Secrets of the Terror Tunnels

A vast system of tunnels built almost three thousand years ago was the site of the greatest battles of antiquity, and these disorienting passages could be the deadliest weapon in war; experts reveal what made this underground world so terrifying.

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