This is one of the most popular and busiest museum in DC. My children loved this place. There are some plastic models of dozens of aircraft from the ceiling. In some of the gallery, you can sit in the cockpit and imagine performing in mid air.The building is very beautiful with cherry blossoms outside. Thre are several theaters to watch movies. The IMAX films like To Fly! is a favorite kid's film that makes you really feel like you are leaving the ground. There is also a Einstein Planetarium where there is a 20 mins. tour of the universe. The Stars tonight was really fun because you can see what is in the sky at night. This is one of the museums best place to visit!