Mukesh and Nita Ambani Flickr/Christopher Macsurak and Getty Images/Stephen Lovekin Mukesh Ambani, a business tycoon and the wealthiest man in India with an estimated net worth of $22.3 billion, recently moved into the world's most expensive home with his wife and three children.

The home, called Antilia, sits on Mumbai's tony Altamount Road and cost an estimated $1 billion to build.

But despite a global fascination with the 27-story residential skyscraper, surprisingly little is known about it—until now.

Ambani's wife Nita recently spoke about the soaring mansion in an interview for the first time with Vanity Fair's James Reginato. The whole profile is worth a read, but we've pulled out some of the most notable facts about Antilia.