If your home, like some of those pictured above, has a built-in bathroom fireplace, then consider yourself a lucky dog. Otherwise a little ingenuity is required. Modern gas fireplaces can be less than gorgeous, but lovely old mantelpieces abound at salvage yards; just be sure to think about how to treat the material so it will stand up to a steamy bathroom.
Portable fireplace units like the Piet from Cavallius Design (last photo above) are also an option, and they're more environmentally friendly (if a little less atmospheric) than old wood-burning fireplaces.
The very thought of lounging in a warm bath by a warm fire makes all our stress melt away. How about you? Have you ever lived in a home with a bathroom fireplace? What are some pros and cons?