Mukesh Ambani was recently ranked among the top fifteen richest people in the world. With a net worth of over USD 54 Billion, it's a well-known fact that Ambani adds a royal and elegant touch to his lifestyle. Mukesh Ambani’s home, Antillia is the most expensive residence in the world after the royal Buckingham Palace, estimated at over USD 1 billion! Here's a look at some of the most expensive things he owns.