S4 E3 ∙ Guernsey Nazi Towers ∙
A little-known dark past explains the vast monolithic structures that dominate the small British island of Guernsey.
A Soviet dream-town that turned into a nuclear nightmare.
A seemingly endless concrete line stretching through the French countryside.
The vast monolithic structures that dominate the small British island of Guernsey.
A maze of tunnels filled with haunting remains beneath the streets of Paris.
An elaborate underground complex in Italy that had been abandoned for nearly 2,000 years.
Projects include a ruined compound on the edge of a peninsula in Colombia.
A formerly luxurious and strategic mountain-top villa on the island of Rhodes.
A strange-looking town with a supernatural atmosphere.
Ruins from the time before the fall of the Berlin Wall.
A sprawling Wild West ghost town sits peaceful and abandoned in Montana, USA.
A vast project in the icy wilderness of southern Alaska.
A pioneering complex marked by both glory and tragedy that's soon to be lost forever.
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