As Barcelona gears up to be the World Capital of Architecture in 2026, it is calling on young architects under 35 to reimagine 10 permanent blind walls, one in each district, and transform them into new facades that will leave a legacy in the city. This International Ideas Competition for Young Architects aims to improve the quality of public space through transformation and revitalization. Organized by the Barcelona City Council and the Fundació Mies van der Rohe, made jointly with UNESCO and the International Union of Architects (UIA), it seeks architectural proposals that give meaning to walls that are currently anonymous and without any prominence, exposed in public space in a permanent provisional state.