During the Blitz, people used the deepest Tube stations as shelters. Families would sleep on platforms at Hampstead, 58 metres down, feeling safe from the bombs above. Those same tunnels later became secret government bunkers. There's even a disused deep-level shelter at Goodge Street that was a command centre.
How DEEP is your commute? Incredible charts reveal exactly how far
And here's a fun one: the deepest escalator on the network is at Angel, with a 26-metre drop. That's longer than a football pitch laid on its end. You've stood on it, gripping the handrail, thinking, "How long is this thing?" Now you know—it's practically a vertical journey through London's crust.
