The journey is represented metaphorically by a ramp-path consisting of a metal tube structure that becomes the common thread that from the outside to the inside accompanies the visitor to the discovery of the suburbs of Italy; the use of tubular steel, used for scaffolding in construction sites, symbolises figuratively the "construction site of the suburbs" to be redeveloped and rethought. The route starts from the access staircase to the Palace and invites the visitor to walk a red carpet until you get to the monumental hall where, the large iron scaffold that supports the ramp, crossing vertically all the central space, becomes the fulcrum of the setting; it is a narrative and compositional element and at the same time gives shape to the design choice that allows you to use the large room 13 meters high welcoming the exhibition and the visitor.