PIAZZA ARMERINA, ITALY - APRIL, 24: Mosaics of the Villa Romana del Casale, large and elaborate Roman villa designated as a UNESCO World Heritage Site, famous for the extraordinary collection of frescoes and mosaics on April 24PIAZZA ARMERINA, ITALY - APRIL, 24: Tourists visiting Villa Romana del Casale, Roman villa designated as a UNESCO World Heritage, famous for the extraordinary collection