Selected Bibliography Architecture - Form Space and Order | Page 161

PAR AL L EL PLANES Nave of the basilican church, S. Apollinare in Classe, Ravenna, Italy, 534–39 Champ de Mars, Paris The directional quality and flow of the space defined by parallel planes are naturally manifested in spaces used for circulation and movement, such as the streets and boulevards of towns and cities. These linear spaces can be defined by the facades of the buildings fronting them, as well as by the more permeable planes established by colonnades, arcades, or rows of trees. Galleria Vittorio Emanuelle II, Milan, Italy, 1865–77, Giuseppe Mengoni 146 / A R C H I TE C TU R E : F O R M , S PA C E , & O R D E R