Reid in Pierce are smitten by all things aviation, so we took them to a branch of the National Air and Space museum that is located outside DC, near the Dulles airport. It has a huge observation tower to watch planes taking off and landing. The boys were going crazy running back and forth from side to side, trying to see every plane.
They did a number of flight simulators. There were several different types to choose from.
Of course, one of the highlights was the Discovery space shuttle. We enjoyed watching a video of its last flight.
With two hangers and the tower, this is a huge museum. We spent about 4 1/2 hours going through it.