Nazi Megastructures: Battle Ready

As US forces spread across the Pacific, Japan threw suicide bombers into action, built the world's biggest battleship and started building deep beneath Okinawa.

The story of propaganda maestro Joseph Goebbels and Holocaust architect Heinrich Himmler: two men who built one of the largest social megastructures ever - Nazi Germany.

Hitler orders the largest battleships ever seen. But how long will they last? He also demands fortified bunkers in a bid to protect his U-boats from the Allies.

Having smashed through Poland and France, the German Panzers finally met their match when they took on the Soviet Union's war-winning T-34 tanks.