D C.
Yelp
I scheduled a visit here to surprise a military- and aircraft-loving 10-year-old, and it was a major hit! Even my tween daughter had to admit it was a great way to spend a couple of hours. Easy to get to, easy on the wallet (watch out for that awesome gift shop!).
There are 4 large hangars or aircraft and some others parked outside as you move from hangar to hanger. WWI, WWII, Korea, Vietnam, and even some civilian craft. As a bonus, there are also some vintage cars, a Sherman Tank, and an anti-aircraft gun. Kids were also delighted to go through the "restoration hangar" where they were working on other aircraft.
If you go in the hot months, head out early in the day. The hangars have fans but this is of course Texas so it's not 72 degrees in there! You can take a break in the air-conditioned "canteen" breakroom and grab a cold drink if necessary.
Only disappointment was the fact that they only take 18-years-up in the "warbird flights" they offer (couple of hundred bucks and up, depending on the plane). I may have to go back without the kids for that!
Easy to get through it in less than an hour if you don't care to really get into the detail, a couple of hours is better though. Don't miss this one if you're a local, it's worth it!