The act of creation always means a process of going back and forth, with moments of uncertainty, deambulation throughout the History, with attention to the present and confrontation with the project (or the future). At the Wall in Circo, we will find the House in Coimbra (an ongoing project) through fragments such as sketches, colages, precise drawings and models, that reveal analogies and trigger affinities with other architectures, and ultimately, represent the drama of the architect’s choice. From an empty plot, Nuno Brandão Costa talks with Adolf Loos, Le Corbusier or Rem Koolhaas.