The Arizona Railway Museum a community effort towards the acquisition, restoration, preservation and display of railway equipment, artifacts and mementos related to railways of the past and present.
This is a great place to visit for families that like trains. It is free to walk around in the yard and see the trains. You can even climb inside a steam engine and ring the bell. Signs near the engines and train cars contain information about the exhibits. There are some great place to take pictures in the yard, so be sure to bring your camera.
I recommend paying the admission fee (only $5/family or $2/person) so you can explore the display cars. The Santa Fe cars were open when we were there. They were set up just as they would have been when they were in use. It was interesting the see the private rooms and imagine what it would have been like to travel that way. The kids enjoyed sitting in the seats and pretending to be passengers on the train. The set-up was very family-friendly. Anything little hands shouldn't touch was out of reach. I have 5 kids (ages 9, 7, 5, 3, and 1) and there wasn't any worry about them touching things they shouldn't. The train cars that are open rotate a few times through the year so you can have a new experience if you visit again.
Inside, the museum has very few exhibits but it is a nice place to cool off after wandering the train yard. There are a few videos being shown as well. My kids mostly liked the gift shop where there were many toy trains and accessories available for purchase.
The docents were very informative and friendly. They gave each child a junior conductor sticker and showed them where some free train magazines were that they would take home.
My family visited the trains over Labor Day weekend (opening day). The weather was cooler (for an Arizona summer) which is essential when visiting this museum as the train cars are all outside. Some of the display cars were air-conditioned. There were a few other families that were there the same time as we were, but it wasn't crowded by any means.
The hours here are very limited so you need to plan ahead. This is a fun place to spend an hour or so. I would suggest checking it out sometime if you are in the area and have children who enjoy trains or history.