We just recently got back from our vacation to Washington DC and New York City (from California). We went to DC to visit our daughter, who lives there. I was able to snap the following:
1. Washington DC Metro
2. Washington Union Station (a 5 am when we were catching a bus to NYC)
3. Some misc. pics of PRR historical markers of the old PRR "Navy Yard." It was apparently a PRR rail yard at the old Washington Navy Yard.
Enjoy!
Matt