I was in Pittsburgh a couple weeks ago and went to the Carnegie Museum of Arts where they had an architecture display called "Dirty London". There was some cool stuff in there... I'll see if I can find online pics of some of the stuff.
*edit* Okay, they apparently either changed it, or I remembered incorrectly. The display was "Gritty Brits". Either way, this was one of the buildings featured...
http://www.fashionarchitecturetaste....es_estate.html
If you go to this company's main website, they have some pretty interesting ideas.