Associate Professor of Art History Nadja Aksamija got her first glimpse of Bologna, Italy back in 2004 as she walked from the train station towards the historic city center. It was a hot day and she dragged her suitcase down the sidewalk. Crossing Piazza Maggiore, Aksamija stepped into the shade of Palazzo dei Banchi, experiencing for the first time the city’s breathtaking porticos – extensions from the upper levels of structures that create about 37 miles of covered walkways alongside city streets. “I remember thinking that this was incredible,” Aksamija said. “It felt like a changing landscape.” While the porticos…