One such house in Florida had its own moat for about $10M:
While yet another had an underground Nuclear Bunker for only $800k:
Although, if it weren't for hurricanes (and money), I'd probably buy this Floridian Island near Marathon for $12M:
And finally, and perhaps the most
ridiculous safe, is the "Jamesburg Earth Station" in California, complete with original satellite, working generators, a helipad and a gym.
Which one would you pick? See the rest at the article, here,
OR: You can check out my "How to Survive a Supervolcano" Eruption Guide and even my original
Apocalypse Article: "How to Survive an Ice Age."