If you've ever played that game of "how much is a home in XYZ-ville versus my city", you'll know things can get pretty crazy. For example, for the same price you can buy a two-bedroom house in Sydney, you could have yourself a castle (with a title) in Ireland. Yep, it's a crazy, crazy property world out there. 

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In the same vein, billionaire.com, with the help of international agency Savills, has played the same game. Except for - you guessed it -  billionaires! Presenting the top six most exclusive addresses in the world. Read on to see if your locality made the cut... (note: all numbers are in Australian dollars).

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