I agree that Lexington & Concord is a good park, the other park that we found to be interesting is Custer in MT. They had markers where each trooper fell and the topography of the park was very revealing. We haven't been to Gettysburg tho it's on my list, we don't tend to visit the NE much for obvious reasons. The most minimalist "military park" was one ion New Mexico just a stone column in the middle of the desert that we happened across when we were looking for a rock shop. I don't even recall the name of the battle. Wasn't Glorieta Pass.
