¡°Sacro GRA¡± takes the all-roads-lead-to-Rome adage one step further by telling us that one of those roads is actually sacred ¡ª the 65-odd-km GRA (Grande Raccordo Anulare). It¡¯s Italy¡¯s most expensive highway, circling Rome in one big loop. Documentarian Gianfranco Rosi took his camera to the GRA (seen...