Secret Lives of the Super Rich

A tour of the most expensive mansion in Malibu; investor Kevin O'Leary orders $65K worth of rare whisky; a real estate tycoon drives his car straight into the bay; an adrenaline junkie spends $120K to summit Mt. Everest; billionaire's mansion.

Kim Kardashian's gold-eating bestie, Foodgod; an over-the-top mega-mansion in New Jersey has been sitting empty for nearly a decade; rare $350K Ferrari; a zipline ride to a $31 million winter wonderland; the remote desert palace of a Gucci heiress.

A surfer has a cool bachelor pad in Southern California; a Wall Street bigwig transforms his private jet into a flying office; a billionaire beer lover creates an expensive brew; moon rocks are turned into cufflinks; the wheel of a Ferrari.

Musician Lenny Kravitz designs a Hollywood mansion; a $30 million yacht; a helicopter trip to a heart-shaped private island; a home on "billionaires' row" in Aspen, Colo.; a jeweler known as Diamond Joe; the priciest cheese steak in Philadelphia.

A tour of billionaire financier Boone Pickens' Texas-sized ranch; a wealthy millenial goes luxury watch shopping; the secret lounge for Lamborghini-loving VIPs; a millionaire goes on a date in Beverly Hills, Calif.

Cuban coffee baron's Miami estate; an icy playground for Lamborghini lovers; feng shui expert to the super-rich; $72 million Hamptons summer home; the world's most expensive store.

An $88 million fiery fortress in Los Angeles; jeweler Stephen Webster makes a $200,000 delivery; the ultimate Beverly Hills birthday party; a 6,000-square-foot game room; fishing for a $2.6 million white marlin; actor Kevin Costner's Aspen hideaway.

A $50 million palace with lavish secrets hidden underground; a Ferrari collector's rarest ride; inside the magical estate once owned by actor Mel Gibson; a rare pink diamond; one of the rarest Rolex watches in the world.

A supercar that can hit a top speed of 280 miles per hour; a CEO gives a tour of her $35 million cliff-side masterpiece; a beach house; Miami's A-list interior decorator shows off her digs; gold-covered soft serve topped with diamonds.

A piece of real estate listed for a jaw-dropping $1,000,000,000; a bathing suit that costs more than a car; a dog lives inside a London hotel; the owner of a Colorado compound builds her own beach; a dessert covered in $28 million worth of icing.