Artist Jennifer Maravillas created a cartograph of Brooklyn representing each block with a piece of trash collected on that block. This project — http://71squaremiles.com/ — combines so, so many of my favorite things into a massive, tidy, beautiful collage. Check out the work in progress here. Prints of past, equally political and whimsical for sale here.
Thanks to Oriana of Brooklyn Spaces for pointing it out to me.