2. Military Base
A little like Area 51 but I actually have more of an idea of what actually goes on inside a military base. You'd be loaded with weapons and supplies, there is land for growing food and some protection around the outside. When you do run low on food, hop inside a tank, armored vehicle or even a helicopter if you're feeling for it and go grab yourself some munchies. Again, like Area 51 there is a chance the men based there will still be there. They may not be too friendly to some desperate humans who're popping up asking for food and supplies.