What Big Money Buys Billionaire Bill Gates revealed his two biggest indulgences in a talk show recently – a Porsche and a private plane. A look at other billionaires and their big money buys:

Mukesh Ambani Mumbai residence



It’s still the most expensive residential property in the world after Buckingham Palace and the building was completed in 2010. It is the residence of Reliance Industries chairman Mukesh Ambani and his family, and reportedly cost $2 billion, including the rate of the land on which it is built. The building has 27 storeys and is 173 meters high. The highrise sits on Altamount Road in Mumbai and includes space for a staff of 600.

Paul Allen Flying Heritage & Combat Armor Museum



The Flying Heritage & Combat Armor Museum houses Microsoft co-founder Paul Allen’s collection of rare military crafts, tanks and other military items. The artifacts are from all over the world including Japan and Russia. Allen began acquisition and preservation in 1998 and the collection was opened to the public in 2004. The museum is run by a non-profit organisation that seeks to educate the public about planes.

Richard Branson Necker island



Branson bought a private island in the Caribbean when he was just 28 years old, and within a few years pumped in millions and turned it into a fabulous resort. Branson’s island is called Necker Island and is spread out over 30 hectares. It boasts a ten-bedroom Balinese style-villa that can accommodate around 30 people and was purchased by Branson for just $180,000 in 1978, despite being priced around $6 million. Branson’s wedding to his second wife Joan Templeman happened on the island.