If your kid enjoys trains, bring 'em! This park is awesome as it has multiple full-size and toy trains they can ride as well as walk-throughs and a decent sized playground.
I really enjoyed all the historical railroad pieces here, and seeing the old cars on display. There's also an enormous room with several model railroads running. People's creativity in these always blows me away. And I'm not a train person, but the attention to detail and the amount of time it must take to build some of these is ... wow.
One of my favorite museums we completely found by accident.