Continuing on yesterday's aerial photos... Look at the US Capitol. Go to mapquest's latitude/longitude search page (that link will open in a new window so that you can copy and paste) and go to latitude 38.889982, longitude -77.008617. The aerial photo is in color on the east side of the building and black and white on the west side. Why? I wondered if they gave lower resolution to the government buildings in downtown DC for security reasons. But then I noticed that the Pentagon (lat. 38.870553, long. -77.055279) is in color. So much for that theory. Must just be differences in data.