Concéntrico , the large-scale laboratory for architecture, design, and urban experimentation, has officially inaugurated its six-day calendar of activities. The festival is transforming the Spanish city of Logroño from June 18 to 23, 2026, with a series of collective, festive, and performative practices in public space. The program includes 24 installations by international practices and creators , distributed across squares, vacant plots, streets, bridges, and emblematic spaces throughout the c