Well, a 600dpi scanner will have to do. Here's a scaled down version of the wonderful 'Interlude' page from the Muir VW book. This is a 6.5" by 9" image of buildings, an overpass, rooftops, and subways, in an exposed kind of exploded view.. Click on it for a detail version of the red 4cm by 4cm square, blown up to something really, really big.