Thanks to secret, recently discovered microfilm, Hitler's last secret is revealed: a sprawling underground headquarters at Książ Castle.

50 km north of Rome lies the greatest hideout in fascist Italy’s history: The Monte Soratte Bunker, with security features even a Bond villain could only dream of.

Paranoid and isolated, Albanian dictator Enver Hoxha establishes his bunkerization project, which would result in the construction of more than 170,000 bunkers.

Infamous for the bunkers constructed during World War II and throughout the Cold War, Stalin’s hideouts have maintained a shroud of secrecy for decades, and are now seen for the first time.

Having stolen billions from the populace, Ukrainian dictator Viktor Yanukovych hides his treasure trove in a mind-bending corruption scheme that leads to Mezhyhirya, a 150-acre estate, with secret underground tunnels.

Casa Poporlui is the magnum opus of Romania’s most bloodthirsty dictator, Nicolae Ceausescu, and hides secrets of an extensive underground bunker system.

Travel across the continent, exploring the opulent villas, luxurious palaces, remote command centers, underground tunnels, and secret bunkers of Europe’s most tyrannical dictators.