That should be less than a 10-minute walk. Children seem to react differently from grown-ups to this museum. The Smithsonian has spoiled adults, as have the children's museums of some other cities. Kids, though, seem to have a fine old time at the Capital Children's Museum, thank you very much. That's probably because the place looks played in.
Next door is a pair of mazes.
At an animation exhibit, kids can make flip books and sit at light tables and trace the outlines of such characters as Bugs Bunny and Wile E. Coyote. They can sit in the front of a Metro bus or the back of a fire engine. The museum has a strong international bent, at least as it applies to two disparate countries, Mexico and Japan. A large exhibit on Mexico features a re-creation of a market, kitchen, corner store, log cabin and public square. A sandbox stands in for the beaches of Yucatan.