Having had a look at Madrid’s current map (2.5 stars), I thought we’d delve into the past and see what came before it. The first thing to notice is how much smaller the system was in 1981: only 10 Metro lines instead of 12 — and many of those are much shorter than now, and no light rail lines.

Have we been there? No.

What we like: A paragon of clean, functional transit map design. There’s great flow in this map, especially compared to the staccato, rigid, 90-degree matrix of the current map. Even without a legend, everything on this map is perfectly clear.

What we don’t like: Some minor station placement and labelling issues. Some route colours look similar (the 2 and 7, and the 9 and 10), but I think this is more to do with the age of the map that has been scanned than an issue with the design of the map itself.

Our rating: What can I say? I’m a sucker for simple, clean, well-designed maps. Four stars.

Source: Mikeyashworth/Flickr