With its saturated hues and glittery light-reflective quality, Illuminessence glass gives St. Patrick's Cathedral a run for its money.  Textured to recall Egyptian cast glass, the three lines - Prism, Prism Listellos, and Radiance - are ideal for floors, walls, and even countertops.  Offered in nine watery hues, the collection is also green: The tiles are manufactured from recycled glass. crossville-ceramics.com.