This post originally appeared on Orphan Road.

Here’s a sweet documentary about the development of the London Underground map. The map was something of a revolution because it emphasized clarity over geographical accuracy. One goal was to get people to use the system on evenings and weekends, when it was underutilized. so they made the stations appear equidistant, and released a series of promotional posters, which you may have seen in the Columbia City/Hilltop/74th Street Ale Houses.

(via Confabulum, via Ryan Avent)