Steve Brown/Sepia Productions Inc.
When building up just isn't possible - and 'no' isn't in your vocabulary - building down is an (expensive) option for the super rich.
- Multi-million-dollar homes for the 1 percent are hardly eyebrow-raising.
- They are, however, when they extend stories beneath the earth's surface.
- Here are 50 photos that show how obsessed the wealthy are with subterranean homes.
For the wealthy, owning a luxury home is no rare feat.
But even for the some of the world's wealthiest individuals, underground luxury mansions are an extravagant expense.
But, whether these mansions have been fashioned out of a desire for pure opulence, a lack of space, or paranoia (yes, luxury bomb shelters are a thing), for some, they are a must. These photos show just how obsessed the super rich are with underground mansions.