For 90 years, Harry Beck’s map of the London Tube has brought order to the word’s ever-expanding Metro lines. This single idea chugged on to become a classic The London Underground is not only the ...

But here’s the thing: the Underground diagram already does send very conflicting messages — it’s constantly saying, “I look like a map, but I am not one. Psych!” And yet if you ask 100 people what the ...

Changes to six lines of the London Overground mean an update to a 1931 design that went global and became a gold standard, even sparking an uproar in 2009 when the River Thames was taken off the map.