A Japanese real estate site has a 1/500 scale model of a skyscraper free for the downloading. It looks good.
Paper Models
Flash Gordon Style On Seat Flyer Speeder
For your pulp science fiction games, here’s a paper model of a Flash Gordon style single seat speeder-flyer.
Howl’s Moving Castle Paper Model
For fans of the wildly imaginative Miyazaki animated films, here’s a paper model of Howl’s Moving Castle. It might have some use in a fantasy or steampunk game; otherwise, it just looks like it would be fun to build.
Northern European Buildings
The Grundschule Pretzschendorf site offers a set of 24 paper models of northern European buildings, many half timbered. They’re in N Scale and would be perfect for those new 10mm WWII figures. With a little enlarging, they also could be used for Flames of War in 15mm.
Western European Paper Model Houses
The http://pagesperso-orange.fr site offers a set of very nicely done paper houses modeled after WWII era western European buildings. There’s also a single story Russian farm building. They look very nice and since they are in jpg format, it should be no trouble to resize them to scale.