The super-rich are building Swiss bunkers to stash their Ferraris, gold and fine wine

California’s super-rich have plenty of luxury bunkers to choose from — but this one takes doomsday prepping to a whole new level. A massive network of underground vaults is being carved into the Swiss Alps, offering the ultra-wealthy a heavily fortified place to stash everything from priceless art and gold to vintage Ferraris and expensive wine. The complex will house about 20 private vaults buried under more than 100 meters of solid rock — a natural fortress designed to keep criminals out. Each underground cave is being sold on a 99-year lease, with prices starting at nearly 1 million Swiss...