During the Cold War, the Soviet Union engineered Project 941, the largest nuclear submarine in human history. Displacing 48,000 tons, this Typhoon-class leviathan was built with a radical multihull design to carry massive ballistic missiles and hide beneath the Arctic ice. Discover the classified engineering, acoustic stealth tactics, and bizarre internal amenities of this Cold War giant, and learn why the United States eventually paid millions of dollars to dismantle these Soviet machines.

Source: The Soviet Union’s Largest Submarine… What the CIA Found Inside the Typhoon Was Terrifying