Hi, zirpolo! That's an encaustic tile that was handmade, same type we used for the backsplash in the kitchen. You can customize the colors and order your own here: http://granadatile.com/echo_catalogue.php?t=0&n=72#tile

What a kick! I'd never be able to handle it, visually, within age. But it's very unique

Thanks, 902 Juanita! It's a lot less of an illusion in person, but if you line yourself up with the stairs just right, and stand still, it's a fun surprise until you move again.

Just returned from Italy with a gazillion photos of floor mosaics among other things, and scratching my head. Flipping out over the old patterns and craft but loving minimalism too. What a beautiful, fresh way to incorporate the old with the new. Congratulations, fantastic!

Thank you Julia!