Our worried wealthy aren’t just buying out-of-the-way properties. They’re digging deep beneath these properties to create what the rich and their realtors like to see as “luxury bunkers.” New Zealand has become a particularly popular bunker locale, and one U.S. company, Rising S Bunkers, has been busy building and outfitting safe havens that can operate quite luxuriously. That company’s top bunker model comes with everything from a swimming pool and a bowling alley to a sauna and a game room. The cost to park one of these bunkers in a barely populated New Zealand locale: just under $10 million. Bullet-resistant