The following ten buildings are the most expensive building ever. Most of the buildings in the list are huge casinos in Las Vegas or Macau. 10. Antilla, Mumbai, India – $2,53 billion The Antilla is a residential building owned and lived in by established Indian businessman Mukesh Ambani. It is thought to be the most expensive home in the world, and Ambani employs a 600 strong workforce just to maintain and run the place. The home has 27 floors and took five years to construct, with its official completion date being at the beginning of 2010. As land prices have…