As the broader market has crashed, so too has the highest end of the real estate market. Asking prices are down by as much as $50 million, and little is selling. Based on the homes currently on the market, these are the most expensive properties in the United States. This Bel Air, Calif., home, (left) at $85 million, is 30 percent 'cheaper' than the most expensive. America's Most Expensive Homes
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