This is information designer Alexander Cheek's thesis project, "No Roads," which I discovered on the web a few years back. He stripped a map of New England of the usual suspects, such as roads, parks, etc, and overlaid other significant???yet less commonly mapped???points of navigation like Dunkin' Donuts, covered bridges and porn shops. Cheek screen printed the final atlas on sheets of acetate, and when all the maps are stacked one top of another, the result produces a surprisingly accurate picture of the urban centers of New England.