The Engineering Marvels That Time Forgot | Abandoned Engineering | S2 E12 | Full Episode

Engineering on a scale so massive it was thought to be indestructible. In this full episode of Abandoned Engineering, we investigate the fatal flaws and secret histories behind four monumental sites: the Gleno Dam in Italy, where a catastrophic failure wiped out entire villages; the Packard car plant in Detroit, a once-revolutionary industrial metropolis turned to ruins; the top-secret Hara Submarine Base in Estonia, built by the Soviets to make their fleet invisible; and the Nazi-era Mazurian Canal in Poland, an ambitious project that hit a dead end. From wartime sabotage to economic collapse, why were these engineering giants left to decay?

Each week, Forbidden Mysteries uncovers the hidden truths, dark secrets, and extraordinary stories that history tried to forget. From royal scandals and unsolved murders to secret societies, ancient relics, and mysterious ruins, every episode takes you deeper into the shadows of the past.

Journey through lost worlds with Abandoned Americana, or uncover shocking secrets in Forbidden History. In the end, the greatest mystery is always what history chose to hide.

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