Nikolas Schiller makes amazing art using satellite and aerial imagery as his starting point. Much of his subject matter is political in nature - he was quoted in a Washington Post article today (March 14, 2007) saying, "The world is severely out of balance. These maps I make are an implied reflection of a world more or less at balance." He is also a great champion of gaining equal voting representation in DC - he has an interactive map series ("Interactive Inequality") that has Citizen maps on the left and Colonist maps on the right. I really love the way he so deftly makes visual statements that are relevant on so many levels - political, emotional, artistic, spiritual, mathematical.
You can see his rendering of my neighborhood in DC, Mount Pleasant, here. Wish I could photoblog a detail, but the images are too large.
He's also designed a new DC flag that we hope will be used if HR 238 passes (a bill designed to throw a meager crumb our way and in the process give an extra House seat to Utah) that reads "Taxation with 1/3 Representation."