Intrepid Sea, Air & Space Museum is a real time commitment — fit it in only if it's a priority.
Allow 2.5–3.5 hrs.
You walk the flight deck of a real aircraft carrier, climb into a Cold War submarine, and stand under the Space Shuttle Enterprise. It's hands-on, open-air on the deck, and a hit with kids and anyone into machines or military history. Pricey, and less compelling if hardware isn't your thing.