New York City
Opened: August 2009
Rates: From $495
The owners of this legendary fixture of Manhattan's Upper East Side gave it a $150 million makeover last year. New additions include modern, re-imagined interiors by designer Jacques Grange, a restaurant from Jean-Georges Vongerichten that's become a celebrity-spotting hot spot; and touches like mirrored, flat-screen TVs in the bathrooms.
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Last updated November 08 2010: 7:04 AM ET