Another great one is https://www.worldmetro.io/map, which came out of a very cool Kickstarter project[1] that mashed up nearly every urban railway in the world into a huge, interconnected network. I bought one of the large 60” x 45” maps and I still sometimes sit and stare at it, trying to find the various stops where I’ve lived and worked over the years.

1. https://www.kickstarter.com/projects/1960956629/the-world-me...