If you thought your neighbors were hard to compete with, let's just say keeping up with the Joneses takes on a whole new meaning over on Billionaire's Row. The coveted strip along West 57th Street is dotted with luxury high-rises and, as its name suggests, a slew of residents boasting net worths well into the 10 figures. Wondering how the one percent of the other half lives? Click through for a peek inside their beyond-exclusive Manhattan home market.