We headed to our first Smithsonian - the National Museum of American History. We didn't time it well because we hit the line right as the parade ended, so we waited in the security line about 45 minutes.
We enjoyed the museum. Trey got to play with some electronics in the Spark Innovation center for kids and he had fun pretending to be the president. We also tried the simulations where you pick a story and sit in a capsule which moves based on the TV screen thing inside. Trey picked a scary ride story which we both thought was lame and a waste of money.