Bunker down, survivalist style

Bunkers aren't just the stuff of war movies. Modern-day survivalists (and retro survivalists for that matter) love their bunkers, be they nuclear war-style retreats or secret caches for food and other supplies.

You can track down some great examples of old bunkers through the Australian Bunker Project and Wikipedia.

Check out these Swiss bunkers. Read all about Hitler's bunker.

Consider making your own bunker by converting a concrete water tank.