Our Pick: The Whitby 68" Cast Iron French Bateau Tub, $4,765; penhaglion.com
A room without focus often falls flat. Make a splash with an elegant, freestanding tub in a shimmering, silver patina. If you pick a unique tub like this, consider keeping the rest of the installed elements in the room—think countertops, light fixtures, and bathtub faucets—classic, even if the rest of the room is splashed with bright color and pattern. Silhouetted by a pair of windows and accented with graphic wallpaper and blue-painted trim, this tub steals the show.