10 Gargantuan Things Made Solely For Killing People

The Nazis in 1940 faced a bit of a conundrum called the Maginot Line, a string of defences built specifically to keep them out of France. Channelling that go-getting genocidal spirit, the Nazis came up with a weapon that could bombard the ever-loving hell out of the French fortifications. It was a gun so insanely, insecurity-revealingly immense that it had to be moved by rail, and even then had to be taken apart first so the tracks didn't collapse quicker than the Weimar Republic.

They called it the Schwerer Gustav ('Heavy Gustaf'), and as seems decreed by fate it never actually fired at the Maginot Line because the Germans built a load of tanks and drove around it instead. The Gustav was used once, against Sevastopol in 1942, which while it wasn't a lot of fun for the people in Sevastopol was a fraction of what it was designed to do. The Germans destroyed the Gustav at the end of the war so the Russians didn't get their hands on it, which in retrospect is probably just as well.