One of the more eclectic buildings on Park Avenue, this apartment house was originally designed to contain multi-story apartments???the "typical" apartment in the new building was a 17-room duplex???including a spectacular triplex for its developer, Albert J. Kobler, publisher of American Weekly magazine. Built in 1926 and converted to a cooperative in 1957, the interiors of the 12 large apartments within this narrow 16-story building are as intriguing as its history. Amenities include a full-time doorman and concierge. The building's prime Park Avenue location makes it a neighbor to some of the avenue's most glamorous residences as well as boutiques and department stores along Madison Avenue, art galleries and restaurants, museums and the Lenox Hill Hospital.