Starting from the discovery of a new mosaic pavement (2019) in the so-called Building of Two Staircases at Ostia, we analyse a particularly creative method of restoration, named by M. David (1997) à divertissement. This type of restoration is represented at Ostia by a mosaic pavement of the Terme di Nettuno (II, iv, 2), in the Domus dei Dioscuri and in the Piazzale delle Corporazioni. In some ways they are a sign of a certain freedom of action of the craftmen and almost of a form of frivolous and playful entertainment
