We took the girls to the Union Station museum in Ogden. It was great! We bought a Family Pass for 15$ and there are 4 museums you get to see with that: a Railroad, Browning Rifle, Cowboy, and Old Car museum. The girls especially liked the railroad museum.
Look at how nice their dining car manners are. :)
Monta riding in the caboose.
This museum is great for kids with these interactive displays. Well worth the time to stop there.