Torres del Parque (a building by Rogelio Salmona), image in Panoramio by Jose Daniel

Two cities on two continents and two different contexts. Barcelona on the Mediterranean sea, despite the crisis with a socioeconomic structure closet o the European average, and Bogotá surrounded by Andean mountains and with a social structure corresponding to a growing Latin American country. This week I propose an excursion around their urban tissues according to their density, that indicator that drives urbanists mad and that is looked for or rejected by people according to the conditions.

For this cadastral data have been used to draw density isolines allowing a parallel view.

Sierra de Collserolla as seen from the Sants Station area in Barcelona