If you are looking for something real nice for the bathroom, OR if you just want to browse and dream, a trip to Waterworks is advised.
Originally a SoHo fixture, Waterworks set itself apart years ago by celebrating the vintage New York look, steering clear of modern Italian bathroom design. For example, Thomas O'Brien of Aero is one of their designers.
Waterworks sells everything that goes near water: tubs, sinks, "water closets", tile and all the hardware you could ever need. This is extremely chic stuff and meant to get you thinking about just how much fun it would be to spend a lot of money on your bathroom.
There are two stores in NYC (57th st is the other one) and a new one is said to be opening in the Flatiron district soon.
If bath accessories are your interest, Waterworks opened up an adjoining shop devoted to towels, robes, soaps and other nice stuff a few years back. This is a good stop during gift giving season.
Frommers says: The place to give that most sacred of rooms, the bath, a whole new, luxurious look.
225 E. 57th Street
New York, NY 10022