Banyoles old town used to be a deteriorated area in which vehicles and pedestrians cohabitated around a urban system of narrow streets and old sidewalks. The irrigation canals that originally were clean had become part of the sewer system of the city. Around the Central Square there were also sidewalks in which cars parked randomly. The process was to 'pedestrianize' the whole area, removing all the old sidewalks. The new intervention is made with travertine stone. This calcareous stone has always been present in the city's subsoil. All the enigmatic buildings, churches, medieval houses or monuments were also raised with travertine. The departing point is to cover the Central Square (the most relevant part of the project) using a tessellation of travertine. The proliferation of this tiling arrives to the streets and minor squares in different phases of the project. On the other hand, the irrigation system is uncovered intermittently across the pedestrian ways.