1: #Tokyo metro map in 2D.
2: The same map in 3D.
2: The same map in 3D.
What always gets me, is that building pilings are still possible when there is a swiss cheese of tunnels and the like underneath the surface.
On maps, accuracy and useful utility.

@straphanger Every city ought to have a 3D metro map like that. At the local transit museum, or at a/the central station.
Now I want one made with LEDs so it can show real-time location of trains.