Floating vanities, tricked-out showers, and freestanding tubs highlight the top bathroom design trends, according to a survey of kitchen and bath design professionals by the National Kitchen and Bath Association.

They say even a king looks like a jester while sitting on the porcelain throne. And while that may be true, that doesn’t mean the bathroom itself can’t be fit for a king (or a queen). But what constitutes “fit for a king” changes throughout the years. It can be tough…