Alfredo Pirri, 'Passi' (Steps), 2011. Galleria Nazionale d'Arte Moderna, Roma. The museum's entrance floor has been transformed into an oddily fragmented mirror-like surface: "With this work I should like to give the spectator the impression that while moving in space he can modify his vision of it, carrying out a twofold simultaneous action of demolition and reconstruction of the image". http://www.alfredopirri.com/passi-2011/?lang=en