The best collection of Roman mosaics in any single place in the world is in Sicily, at a place called Piazza Armerina. The mosaics belong to the vast flooring of a single Roman villa that may have belonged to the Emperor Maxentius or some very wealthy land owner who may have supplemented his income by the exportation of wild African animals for the gladiatorial shows in Roman towns. Every room in the huge complex has mosaic flooring.