National Air and Space Museum
2–4 hoursThe most-visited museum in the world is the right call for a reason — actual Apollo spacecraft, the Wright Brothers' Flyer, space suits, and interactive flight simulators captivate kids from age 4 through teens. The IMAX theater shows space films that are worth the small extra cost. Plan a full day and arrive early as lines build by 10am.
- Pace
- Easy to shorten if attention runs out.
- Nap plan
- Choose a morning slot or start immediately after the main nap.
- Getting there
- Check parking or transfer time before choosing a ticket slot.
- Weather
- Strong heat or rain backup; timed entry can still matter.











