Here is an interesting resource for GMs who want to turn the world on its end for their players. This link is to a map of the London Underground, but with all of the tube-stations relabeled with anagrams of the station names. For example, Old Street is "Eldest Rot," Oxford Circus is "Crux for Disco."
I am sure that Urban Fantasy GMs of all stripes can find a use for something like this. This makes an interesting map to an alternate London, in a Grant Morrison inspired campaign.
The Anagram Map of London
In this case, the map is the territory. If you decide to use this in your games, please make a comment and share what you have done.
Edit: Since Greg Stolze mentioned this site in a post to the thread that I made about this on RPG.net, I thought that I would include a link to the site in this post as well. Anagrams are everywhere.
Edit[2]: Apparently legal action has forced the removal of the original map. You can find more information here. You can also find Anagram Maps for other cities (including Cleveland) here.