Amazing... I have this stuff in my own bathroom, and assumed it was some sort of synthetically generated random pattern, e.g. a type of ceramic or concrete tile with coloring swirled in or something. To be honest, I find it a bit ugly and didn't understand why anyone would design a tile to look like this.
Can't wait to get home and actually look carefully. I suspect I'll appreciate it a lot more knowing what it actually is.
Travertine is a pretty “famous” stone and was used extensively by the Romans to build some of their most famous structures (including the Coliseum). Since then architects have used it in many famous buildings (e.g. the Seagram building’s lobby).
Unless you are certain "this stuff in your own bathroom" is real travertine, it most likely is "some sort of synthetically generated random pattern". They make it out of colored cement, which is pretty similar to a real thing, but obviously cheaper and more resistant to some hardships of everyday life.
Can't wait to get home and actually look carefully. I suspect I'll appreciate it a lot more knowing what it actually is.