(Photo: David Allee)

The Best Bet
Forget the kitchen. The bathroom is the new frontier for design obsessives. Master baths are now the size of small studio apartments and far more lavishly customized, with floors that warm, motion-sensitive sinks, and projection TVs next to the toilet. But for all the new gizmos, the best bathrooms still cater to basic sybaritic needs: big showers that deliver the most drench, satiny floor tiles, and, of course, imperial bathtubs—like this 1,800-pound marble version, designed for Jonee Sopher by Alexia Kondylis of Kondylis Design and made by Pleiones Group. You can have one, too—just make sure the bathroom floor can take it (tub to order, $20,000; 212-725-6898).