This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
RUP. Esquema de la RUP region urbana policntrica de Barcelona en base al proyecto EURBANET own assumed Capra Demographics of Barcelona Urbanism in Catalonia
Page 2023 Free-images.com. All images are Public Domain