Inspired by the work of Cameron Booth and his Transit Maps Tumblr, Michael Tyznik created these rail maps of Westeros and The Known World. If you look close enough you might notice some small touches — the closed stations along the Wall Line, for example.
Prints of the maps are available starting at $40 at inPRNT: Westeros and The Known World. You can also view the maps at high resolution on Michael’s Flickr:Westeros and The Known World, or the smaller versions below.