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Abandoned Engineering Season 2 Episode 3

An abandoned concrete wall… five strange deserted structures. A lost escape route from nuclear Armageddon… A submerged link to D-day… Once they were at the cutting edge of design and construction, now they lie disused, contaminated and dangerous. But who built them? And why were they abandoned?

Episode Title: The Italian Dam Disaster

Air Date: 2018-05-22