I had posted these two photos on Facebook, and only after I saw them together did I realize what they showed. I didn't understand the night shot until I had been at Fairfax today. I took the day shot, Chris, another Tracker, took the night shot.
The National Capital Trackers has a display at Celebrate Fairfax. The show ran until 10 PM last night, and will again tonight. ends at 6 PM tomorrow.
There is a lawn outside the window in the day shot. At the far end of the lawn is the fireworks area. The night photo shows the fireworks under way.
Running trains with exploding fireworks as a backdrop! How cool is that?