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During World War II, Nazi Germany engineered some of the most extreme weapons ever imagined — and none were more colossal than Schwerer Gustav and Dora, the largest artillery guns ever constructed in human history. These railway-mounted super cannons were designed to obliterate massive fortifications, shatter concrete defenses, and demonstrate the sheer industrial might of the Third Reich. Weighing over 1,300 tons each, with shells the size of a small car, Gustav and Dora could fire projectiles