7 Park Avenue apartments fit for a Princess

From Luxury Listings NYC: In honor of Russian Princess Kristina Kovalenko — she of the $6,500 lunch at Nello’s, the craziest signature cocktail ever (a $5,000-a-bottle Louis XIII Remy Martin cognac with apple juice)  and a new $11 million Park Avenue listing — we present these other Park Avenue palaces on the market right now that are positively royal. [more]