First Division Museum at Cantigny, Wheaton

As a retired Army soldier I have visited many military museums. This one to visit if you are interested in military infantry history. Very good display on WWI and Vietnam. (They even had a display where I was stationed in Germany.) Excellent display outside of armored vehicles. The grounds are quite nice and would make a nice picnic place. I really enjoyed the simulated ride in a Bradly Armored Personnel Vehicle that showed a 3 sided video view of a critical battle during the first gulf war. One hour is not enough. If you really wanted to carefully see everything it would take 3 hours.

If you're in the area, check out 1ID's museum. It masterfully retells the incredible history of the 1st Infantry Division through interactive video kiosks, posters, pictures, a virtual helicopter ride, plus actual equipment, weapons and uniforms from various conflicts all over the world. The museum is in a park; there's a food stand/concession if you need snacks and clean restrooms if you need to go #1 or #2. AND it has a great collection of REAL tanks that makes for a stupendous photo op! Parking is $10.00.