Quote from odd man out: “I used Amtrak for my central VA hike. I flew to BWI, took a commuter train to DC, but my train to Roanoke didn't leave until late afternoon so I had a whole day to kill in DC. So I took the Metro/bus to get to the Air & Space Museum at Dulles Airport. On the way home I had another long layover so I walked to the National Gallery of Art, toured the collection, and then walked next door to the Natural History Museum. HINT: They don't allow backpacks in the museums, but the…