Technology has influenced tile design in a big way. Yes, we now have tiles that change colors in accordance to temperature variations! This results in a palette of beautiful colors spread over the tiled wall, making for a really unusual sight in the shower!
Don't put those pennies away in your piggy-bank. I bet you didn't know they make for one great looking floor... Link
Photos were composed digitally to create a montage of Beijing's cityscapes on the wall tiles in these bathrooms designed by Dr David Tang. Link