I kind of thought about this in class, and realized it'd be a fun little collaborative project for the forums to do (if you lot don't manage to forget it up). So let's create our own metro system, shall we?
You can name the stations whatever you'd like as long as it's not incredibly offensive (i.e. something about how you don't like black people or Jews) or nonsensical (i.e. Pizza stuff Online and then a bunch of cyrillic characters because you think it's hilarious).
Add as many lines as you want. Our first station is Octree. Try to use Cambria for the station names. I'll update the OP with the new map as often as possible.
(click for larger version)Please don't rooster this up.