Madrid's Galería Freijo presents a photographic exhibition that materializes two singular views of Mexico in the mid-20th century: that of Armando Salas Portugal (Monterrey, Mexico, 1916 - Mexico City, Mexico, 1995) and his photographic work on the buildings of architect Félix Candela (Madrid, Spain, 1910 - Durham, USA, 1997), and that of architect Roberto Fernández Balbuena (Madrid, Spain, 1890 - Mexico City, Mexico, 1966), and his almost botanical devotion to documenting the ahuehuetes.