In September 1940, Germany began a bombing raid on London that lasted 57 consecutive days. The attacks on London, and surrounding areas, would continue until May 1941.
Known as "The Blitz," it was one of London's bloodiest chapters in World War II. Tens of thousands of people died, and about a third of the city was destroyed.
Many of those who survived did so by hiding all night in underground stations and tunnels — listening to the bombs crash overhead and hoping their world wasn't about to come crashing down on them.