If you're Mukesh Ambani, one of the top five richest people in the world, you probably could afford to build the most expensive home in the world (exhibit A to the left).  Worth an estimated $43 billion, Ambani is building a 27-story, custom home costing ~$2 billion in downtown Mumbai, India, expected to be completed in January.  The home, named "Antilla," features a six stories of parking, a lobby with nine elevators, dual silver-covered staircases, a ballroom with a ceiling covered by 80% crystal chandeliers, a movie theater, a health spa with yoga studio, an indoor/outdoor bar, and a rooftop terrace overlooking Mumbai and the Arabian Sea!  You can read about the 550 feet high and 400,000 square feet property at Forbes Magazine.