I had to marvel at the way beautiful products move around the world when I saw the wikipedia entry on porcelain tiles.
The illustration on the page showed Hand-painted Chinese porcelain tiles on the floor of a Jewish synagogue in Cochin, Kerala, India. Now isn’t that an interesting mashup of culture!
The wiki goes on to state that:
Large scale production of porcelain tile is undertaken in many countries, including the United States, China, Italy, Bulgaria, Turkey and Spain.
One of the latest practices for porcelain tiles, especially in restrooms, is to coat them with ultra-durable, water-based urethane. This can greatly enhance the appearance of the tile, while also providing a complete seal over the tile and grout surface making it very easy to keep clean and protected from penetrating stains and odor-causing bacteria.