In the fourth season, we had a conversation with architects Álvaro Siza Vieira, Samuel Gonçalves, Francisco Pinto, Francisco Pina, Maria Souto de Moura, Luís Caleiro, Diogo Brito, Graça Correia, Roberto Ragazzi, Pedro Bandeira, Filipa Guerreiro, Tiago Correia, José Carlos Nunes de Oliveira, Pedro Campos Costa, Teresa Nunes da Ponte, Tomás Salgado, and Manuel Roque.