World Metro Map by Mark Ovenden
Originally uploaded by Annie Mole
This is a map I’ve just found on Flickr even if it’s quite old news (sorry).
It’s the metro map of the world and that’s so amazing. I do leave in a city with a dense metro system, and looking at this map make my brain start planning some exotic trips the same way I plan my high street shopping 
This map is a powerful mind stimulator, kudos to Mark Ovenden.
Londoners will obviously recognize that the network diagramme is based on the London underground tube map:
the topology is almost intact and you can easily identify the central line and the circle and the others where there are supposed to be
It’s also made twice nicer as: Transport For London guards jealously the copyrights on their data (making tube map/status based creations rare and dangerous) and this one is available with a Creative Commons licence!