Mosaics
Mosaic is the art of decoration with small pieces of colored glass, stone or other material. It may be a technique of decorative art, an aspect of interior decoration or of cultural and spiritual significance as in a cathedral. Small tiles or fragments of pottery (known as tesserae, diminutive tessellae) or of colored glass or clear glass backed with metal foils are used to create a pattern or picture.
Mosaics were used across the ancient world for domestic interior decoration.
Text from Wikipedia
More Photos of Roman Mosaics at Volubilis