Here’s an interesting article from The Atlantic Cities about the history of London’s Tube map. The Tube celebrated its 150th birthday on January 9th, and its map has gone through at least 12 iterations since it opened its doors to the public in 1863. The map’s original design was a confusing set of meandering lines, and it wasn’t until 1933 that Harry Beck‘s modern map layout was adopted.
Speaking of Tube maps, Animals on the Underground is worth a look. Paul Middlewick takes the Tube’s map and highlights animals found within the tangle of colored railways. My personal favorites are Hornchurch the rhino and White Chapel the polar bear.