From the idea of the Concrete Jungle in the metropolis subcultures to the Primitive Metropolis (Branzi, 2015), the urban space and its Third Landscape (Clement, 2004) tell us about the relationship between natural and artificial, in the relationship between man and nature. Through the farsighted action of a few Marghera inhabitants, the external nave of the Gesù Divino Lavoratore of Marghera was transformed into an actual climbing wall. From that point onwards, two days a week for 20 years, the Sgrafa Masegni association, together with a board multicultural community has transformed the outdoor space of the church into a place of sharing and exchange of values of this sport (climbing).

Concrete Jungle finds its place in this context, building an ecosystem of support for the association's activities. Thanks to the Concrete Jungle project the old and used climbing holds were substituted. The expert route setter, Marzio Nardi, of FASI (The Italian Climbing Federation) designed new lines with new appliances and holds donated by sponsors, to be used for the first time during the annual Arrampilandia event on April 27, 2023. The project aims at building support for the existing community, identifying in its activity a new city-planning means tied to the local community. Through this, we can study the duality of the relationship between natural and artificial and find new methods to intervene in an anthropised habitat. The actual installation at the Biennale was designed to be permanent and not be thrown away. It will be repurposed near the Church of Gesu Lavoratore, to create a new bouldering infrastructure at the disposal of the Sgrafa Masegni association.