Minidoka National Park - site of concentration site for those of Japanese descent in the US during WWII.

Field Museum, Chicago

Railroad Museum of South Florida. Complete with a rideable 1/8th train into Lakes Regional Park.

Grissom Air Museum, Indiana

Austin, Texas

At the Fort Ward Museum in Alexandria. Can’t go wrong with a large map. This shows the ring of defenses around DC used during the Civil War (many of which are now parks around the DMV area).

The new People’s House Museum in DC. Bigature of the White House with videos in the windows telling the architectural history of the building. The rest of the museum is about the people who lived and worked there and their relationship to “the people” of the country.