The Ratte Supertank’s Specs. Weighing an estimated 1,000 tons—over ten times the weight of the already-gargantuan Tiger II tank—it was envisioned as a 155-foot-long and 46-foot-wide leviathan.

One of those systems, the P-1000 Ratte, was an insane Nazi attempt to dominate the European battlefield with what amounted to a battleship on land. Why Hitler Wanted the Ratte.