On our way home from
But we did stop for a photo op by the big gun at the main entrance, and you can drive a little ways in to see an outdoor interpretive area with historic military vehicles and weapons systems.
They have a great collection of tanks (“tanks a lot” – ha!), at least one of which saw battle and has the bullet holes to prove it. (More like dents and dings in the thick metal.)
This is a must-see exhibit if you have boys – plus it’s free and it’s always open even when the museum is not. At the time we were there, it looked like they were in the process of grading an adjacent area, perhaps to add another addition to the exhibit.