Airplane mogul Louis Gonda and his wife own this penthouse at 28 East 70th Street, but, the Observer reports, they're planning to fly the coop if they can find a buyer. The place is only a pied-a-terre for the Gondas, who are now on the hunt for something bigger in Manhattan. So why should anyone consider dropping $16 million on their leftovers? Perhaps the amenities! The terrace has a climate-controlled conservatory with a wet bar, and in the library, there's "a large screen TV that disappears behind a painting at the push of a button." Don't want anyone to know about that World Cup habit!