The fourth edition of the International Architecture Festivalorganized by the magazine Abitare. Cities in cities is the theme explored by a younger generation of architects, joined by some big names on the contemporary scene, and a selected group of sociologists, scholars and administrators who share multidisciplinary experiences, to acquaint citizens with timely issues and to understand the conflicts in progress in the contemporary metropolis.FestArch, from Perugia, takes visitors on a true journey through worldwide realities: Sao Paulo, Rome, Mumbai, Medellín, Nairobi, Moscow, Beijing, Baghdad, Santiago, Tijuana, Seoul and many other cities. Guests include: Li Hu, Gae Aulenti, Boris Bernaskoni, Winy Maas, Giancarlo Mazzanti, Peter Eisenman, Andrea Branzi, Work ac, Pippo Ciorra, Alejandro Aravena, Teddy Cruz, Cino Zucchi, Leopoldo Freyrie, Iwan Baan, Matias Echanove, 2A+P/A, Enrico Arosio, Minsuk Cho, Rem Koolhaas, Mirko Zardini, Richard Burdett, Cynthia Davidson, Pier Vittorio Aureli, Michael Maltzan, Saskia Sassen, Dario Fo.