Occupying the two most important floors of a French #BeauxArts limestone #mansion off of #FifthAvenue, this stunning 10-room #artnouveau inspired #residence is certain to impress. #ChristiesHomes #TakeMeHere #NewYork #grandpiano #interiordesign #luxuryrealestate #interiors #interior #Manhattan #BrownHarrisStevens