The guide to Expo 2015 for design lovers. Every city has its center, its suburbs, its central and satellite neighborhoods. If Expo 2015 is a city (and it is), we've now arrived downtown. Piazza Italia, the area of the Cardo that stretches from the Open Air Theatre as far as Palazzo Italia and the Tree of Life. Along the Decumanus lie the international pavilions. Along the Cardo, the top Italian attractions. As a soundtrack, Dean Martin (what else?) This neighborhood was overseen by the Expo 2015 Social Media Team. All the photos are by Beatrice Bianchetti and Anna Chiara Maggiolini.