For sale: the largest, most expensive home in US history


Film producer and real estate developer Nile Niami is building a massive Bel Air, California residence, containing a 74,000 square-foot main house and three smaller homes, that he will try to sell for $500 million. Here's what that pocket change gets you:

— Entertainment: 8,500-square-foot nightclub, Monaco-style casino and movie theater with seating for 45.

— Fitness: three outdoor pools, tennis court, bowling alley, spa and gym with indoor pool.

— Relaxation: 5,000-square-foot master bedroom with twin walk-in closets, bathrooms, sitting room, office area and adjoining infinity pool. "It's like a private quarters in a palace," said Paul McClean, the home's architect.

— View: floor-to-ceiling windows look onto surrounding hills, the cityscape and the Pacific Ocean. An elevator climbs to a 3,000-square-foot rooftop "sky deck."

— Contemplation: jellyfish tanks cover three walls and the ceiling of a room where shifting lights illuminate the undersea creatures.
— Parking: 30-car garage.

— Visitors: 5,000-square-foot guesthouse with 180-foot infinity pool.

— Staff: eight-bedroom quarters for the help.

— Neighbors: fellow Bel Air residents include Nancy Reagan, the former first lady, and Tesla Motors Inc. Chief Executive Officer Elon Musk.

"California Dreaming: Record $500 Million Tag on L.A. Home"