One of Central Park West's prized co-ops, the Beresford boasts tower apartments that extend into the building's three iconic towers. They are rarely for sale—as of 2005, one belonged to Coach CEO Lew Frankfort, one to tennis ace John McEnroe, and the last to former Cosmopolitan editor Helen Gurley Brown and her movie producer husband, David—so when we heard that a penthouse at 211 Central Park West had just come on the market, we rushed to the listing to check for signs of one of the famous glass-enclosed observation rooms. Sadly, this penthouse, numbered "PHE" in the listing materials, is not one of the famous ones, but rather a top-floor, park-front number on the building's flank. That's not to say this duplex doesn't have its virtues, like an astounding 90 feet of park frontage, balconies running the length of both levels, three bedrooms, a wood-burning fireplace, and three exposures. Those were enough to earn this place a $22M price tag. Not bad considering the lackluster interiors and baseboard heating.