mashing up the tube map

geographical map of London tube taken from Going Underground
The world record for travelling to all stations on the London Undergroud in the shortest time: Wednesday 5th May 2004, 275 tube stations in 18 hours, 35 minutes and 43 seconds, (for the first time breaking the 19 hour barrier)
The web site for the man who broke the record also hosts a page of 'silly maps' or mashups, where people have played with the London Underground Map. That was, until it was taken down recently on orders of lawyers for LU who objected to the misuse of their map.
You can look at a mirror of the page
silly maps