Nazi Megastructures

Hitler transforms his home in the Alps into a mansion that he names the Berghof. This fortress became a meeting place for the most powerful Nazis of the time.

Documenting Hitler's fortified structures built on the Channel Islands, which were manned and operated by Nazis from June 1940.

Ruins across Europe tell the story of Blitzkrieg, a revolution in warfare which almost gave Hitler the chance to create his Thousand Year Reich.

Investigates the Type 21 submarine, which was Hitler's plan to have the world's most advanced submarine.

In the lead-up to WWII, Japan creates a secret naval defense weapon, the Yamato. The heavily armed, gigantic battleship is sent into battle at Okinawa.

In 1945, Japanese generals put a network of defences and tunnels together on Okinawa, creating a devastating killing ground for American soldiers.