Concéntrico Festival 2026 will take place in Logroño , Spain , from June 18 to 23, transforming the city into a large-scale laboratory for architecture , design, and urban experimentation. Over six days, more than twenty interventions will be distributed across squares, vacant plots, streets, bridges, and emblematic spaces throughout the city, bringing together leading studios, researchers, and creators from the international scene, including Chilean architect Smiljan Radić , the raumlabor colle