Reliance's Mukesh Ambani and Nita Ambani own the second-most expensive home in the world - Antilia. Antilia ranks right after Buckingham Palace. 

Situated on Mumbai's Altamount Road, Antilia is a 4,532-square-metre Xanadu. The Ambani family residence is estimated to cost around one to two billion USD which is between 6,000 crores to 12,000 crore rupees, as per Forbes.

Mukesh Ambani's Antilia is named after the phantom island of the same name which is in the Atlantic Ocean. Antilia is situated in the heart of South Mumbai and is 27-storey tall. 

Antilia is managed by a 600 member-strong-staff. It also has three helipads and overseas Mumbai’s skyline and Arabian sea.

Antilia has a total of nine elevators. It lies in the space that holds the ‘W’-shape beams that support the upper floors.