This contribution arises from the interest (on the themes of semiotics and communication of architecture, even in its deep meanings) derived from studies and comparisons with Renato De Fusco, Maria Luisa Scalvini, Pio Luigi Brusasco, Pier Tosoni, Alberto Borghini. A question has been confirmed: what can be the meanings of architecture, especially in the visual field? What are its own contents, and what are "other" contents? Around this subject a research team with scholars of the Politecnico di Torino (called "Alpha Group") was constituted; which has now resumed in a convergent manner to investigate and experiment semiotic in architecture; paying attention to languages of vision. The approach of the chosen method is inspired (in a comparative experiment) to the Nouvelle Rhétorique, the Groupe μ of Liège (with Greimas, Hielmslev, Perelman) internationally known for the definition of an applied rhetoric model-a classic of the human sciences-dedicated to interdisciplinary research, which crosses the aesthetic approach with semiotics, theory of linguistics and visual communication. The first conclusion tends to reinforce the in-depth analysis of the method, and the enhancement of interdisciplinary comparisons, first of all the one with semiotic.