The Longfellow Bridge in Boston crossing over the Charles River toward the Massachusetts State House.
It was a very uneventful sky approaching blue hour. Just after sunset, maybe twenty minutes, the clouds came out of nowhere. The wind was 10 to 12 mph., so there was a little movement in the clouds over my short time-exposure, which was only 25 seconds. Not too long after that the moon came popping out and moving upward and toward my right from out behind the Millennium Tower.
After so many years under construction the Longfellow really looks amazing with the old and new downtown Boston over her shoulder.