The continuous process of urban expansion is one of the causes of climate change. In Brasília, however, a native forest where the construction of 30 buildings had been authorized was transformed into a park. Photographs of the natural landscape were taken in this park. Images suggesting human interventions were then superimposed. As in the well-known book of the same name by Italo Calvino, in this series the idea of the city becomes metaphorical. Is the city a threat? How to reconcile the social organization of the human species with the preservation of natural spaces?