Eduard Balcells Honorata Grzesikowska Marcos Ruiz De Clavijo Valentin Kokudev Andrés Lupiáñez Balbina Mateo   Spain   Developed on the site of Sagrera Park in Barcelona, the transversal ‘green watercourses’ follow maximum slope lines and function as riverbeds and spaces to socialize, among which constructed bands of varied typologies emerge.