These Maps Superimposing Underground Subway Lines Onto Aerial Views Of Cities Are Fascinating

It's easy to lose sight of how subway lines navigate the terrain of our metropolises because, well, many of them are literally underground. But thankfully there are maps to help us peel back the mystery and appreciate the design of public transportation a bit more, like these ones made by Martin Bangratz for finance resource site Quid Corner.

Here's, for instance, a view of Tokyo, home to one of the busiest metro systems around the world. You can see from the image how far the subway lines extend beyond the most bustling parts of the city:

Here's, by comparison, a Tokyo Metro map that showcases the system in its full, complex glory:

And here's a view of the Mexico City Metro, the second-largest subway system in North America:

The system comprises 195 stations over 140.7 miles of tracks.

And, finally, here's an aerial view of Boston and its underground subway system, the first in the US, alongside a Boston subway map:

[See more images at Quid Corner]