Too bad it isn't in 1/72 scale. I lived in the Chicago area back in the day, and the city was surrounded by a belt of Hercules batteries until the 60s. If you know what you are looking for, you can see you can spot some of the few remaining buildings.
Funny how you can drive by a building or property in the city or town everyday and not know it is a military base. One time when I was still in the UK, I was sent to do a job in a Quarter Master's building, I was given an address and was surprised to see it was something I pass almost everyday. All you see from the road was a very tall, continuous, red brick wall. There was no real indication that it was a military base because at the entrance you went in a gate and had to turn sharply to the right, the brick wall having a joggle right there so you couldn't see inside. Anyway, once checked in I was instructed to follow a perimeter road until I found the Quarter Master's Store and I wasn't escorted either. But the surprise was what the facility was -- a massive fuel dump --- I've never, ever seen so many jerry cans in one place in my life and around the perimeter road were helicopter landing pads, which had those large barrel shaped rubber bladder type fuel tanks that the helicopters would carry. Another amazing thing was, I was left to myself the whole week I was there --