We love the look of natural stone in bathrooms - marble and limestone are favourites among our clients but I'd love to use more travertine. Travertine is quite porous so it must be treated well and regularly, and avoid harsh chemicals. The upside is that it is an incredibly textured and lively stone with lots of detail and character. It's a very warm material and every stone has a unique look so you will always have an overall look that is different from anything else.