Multi-millionaires have their pick of the litter. They can live in the world's most expensive cities, like Monte Carlo, and have a second home in Miami. It's almost too easy. For real estate investors looking to tap into the hottest real estate markets in the world, luxury real estate consultancy Knight Frank says these are the cities of choice of the super rich.
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: Full List: Favorite Cities of the Super Rich America’s Most Expensive Zip Codes The Biggest Billionaire Home Sales of 2012 The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.