The project for the new faculty of medicine and surgery is conceived like a system of two blocks, one inscribed in the other. The internal volume, which houses research laboratories and classrooms for teaching, is protected and shielded by a semitransparent volume. The space between the two volumes hosts all the services of the building. This technological solution means, in an architectural way, a dynamic dialogue between the building and its “skin”. This transparency allows a recognizability of the building use which is strongly technological. Inside, the building is distributed around a central courtyard, a great void that, with a skylight at the top, radiates connective spaces around it. The parapets of these, are light bands that mark the pace of vertical plans, generating a strong chiaroscuro eff ect.