Baltimore, Gaithersburg, and the Potomac River all in one photo

Look closely at this picture. That's the Potomac River in the foreground, Gaithersburg in the center, and on the horizon barely visible, the skyscrapers of downtown Baltimore.

I snapped this photo last fall from an airplane leaving Dulles Airport, flying over Loudoun County. I was aiming for Gaithersburg's conspicuous little skyline, and didn't notice Baltimore hanging on the horizon until I was back home, uploading pictures to Flickr.

Not counting photos from space, I never expected to see a Montgomery County skyline and downtown Baltimore in the same picture. It's too cool not to share.