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Watch: The Most Extravagant House in the World

The most extravagant house Antilia may be one of the most expensive and extravagant houses ever. This house is located in Mumbai and owned by none other than Mukesh Ambani, who is known to be the richest person in India. The house is a 27-storeyed and it cost $1 billion to construct. Constructed in 2010, the house also includes space for the staff of 600 people. Antilia has nine high-speed elevators, three helipads and parking facilities for 168 cars. Check out the video.