Tokyo
Even with Japan's economic troubles over the past few years, Tokyo remains as expensive as ever. High-end luxury flats can easily out-price their equivalents in New York and Moscow
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Paris
Europe isn't the bargain it used to be, thanks to the Euro creeping up on the Pound Sterling. According to Forbes, a Royale with cheese in the city of love will cost you 50% more than the equivalent in New York
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New York
The Big Apple hasn't been on top of the list for some time now, but it's still within the top 5
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London
It should come as no big surprise that the Big Smoke is one of the world's most expensive cities. Even with the credit crunch, property still remains out of reach for many and with the average bus trip at 2 quid, even getting around can be pricey
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Los Angeles
When you think of luxury, chances are Beverly Hills and Rodeo Drive aren't too far behind. Los Angeles doesn't rank highly in the list of most expensive cities (number 21 on a recent UBS list), but you'd certainly need money to appreciate the finer things
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Moscow
Moscow is the most expensive city in the world and has been for 3 years running. More billionaires live here than in any other city
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Dubai
A rising star in the near East, Dubai is working hard to become the Las Vegas of the Gulf. The price of a private island in their World properties ranged between $15 - $50 Million with one offered at an eye-popping $250 Million
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Mumbai
The city formerly known as Bombay is home to 20 billionaires, which puts it ahead of San Francisco, Dallas and Tokyo
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Istanbul
According to Forbes, Istanbul is home to 35 billionaires, which puts it at 4th place behind Moscow, New York and London
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Private Islands
For those with real money, the cities can keep their crowds of billionaires. Discerning money-men, like Richard Branson, have bought their own islands to escape from the concerns of daily life
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