Abstract: A decorative tile or set of tiles is provided for use in swimming pools, bathrooms, kitchens and the like. Tiles are manufactured to have a glazed front surface of a first color, and one or more openings in said front surface in a pattern. Decorative grouts are used to fill the openings in the glazed tiles to produce the desired decorative effect. In use, the tiles are held in place by a conventional bedding grout, and finished with a finishing grout. The openings are preferably holes through the tile, having openings at front and back. In a preferred embodiment, some or all of the decorative grouting that is used to fill the openings is a phosphorescent grout that accumulates solar or other light energy, and glows in the dark.