So, about five minutes away from my house, there's an old Cold War era Nike missile bunker. The whole purpose of the thing was to shoot down incoming missiles so they didn't hit Bridgeport (AKA the Detroit of Connecticut). I recently learned there's one near my house on public property, seeing as they built a goddamn park on the site. The bunker is still there, and I have a good idea of where the entrance is. If this is on public property, can I enter it? I don't want to get arrested for going in an abandoned military building, even if it is on public property.