With the urbanization “on the walls” in the western sector, the strip of land is no longer the mere infrastructural
armour that closes the city onto itself, but is now the diaphragm that establishes a new dialectic with the extraurban
territory. Such territory expresses itself only by opening towards the natural landscape, until then recreated
by architects in the gardens closed by the peristyles of the great domus. In the great mosaic of Pompeii, the modern
residential district is the new tile that, intervening on the notion of “limit”, transforms an action on the side-lines into
the starting point of the construction of the modern city that the eruption prevented from undertaking.