Render Every Road in a City with City Roads

Could easily spend an afternoon playing around on City Roads, via Jalopnk:

The aptly named City Roads project is simple: Just go to the site, enter the name of your city, and software creates a map that exclusively shows roads. With no text or topography at all, the results are really quite beautiful.

Explore City Roads, read more from Jalopnk and see the code on GitHub