After lunch, we walked to the Smithsonian American History museum. I was thrilled. I love American History. If I had discovered my interest in the subject a little sooner, I might have majored in history instead. Anyway, this was my favorite exhibit:

We only had a couple of hours in this museum. Actually it turns out that time was in short supply throughout the trip. There's just so much to see in DC and Pennsylvania that our trip really needed to be longer.