Location: Antilia
Purchased: $1.2 billion*
Current Value: $2 billion*

Located on the peninsula of Mumbai, Antilia is hard to miss. It is the private residence of Indian billionaire businessman Mukesh Ambani. He and his family moved into Antilia in 2012. The twenty-seven store, 568-foot-tall, 400,000 square foot residence has three helipads with air traffic control.

It has a 168-car garage, ballroom, nine high speed elevators, a fifty-seat theater, swimming pool and spa, terrace gardens, health center, temple, and a snow room that spits out fake snowflakes from the walls. Antilia is one of the largest, most opulent private homes in the world. Before the mega-mansion was constructed, the 1,120-acre property was a charity-run orphanage.