Bologna is a city of porticos. One can travel for miles throughout the centro storico cooled in the shade from the italian sunshine. A city of terracotta shades with little to attract the 'tourist', but it's all the better for it. One has to relax , drink coffee, sample the excellent food and watch the largely student world go by. Strolling down the many alleyways, especially in the former ewish quarter, and simply admiring the architecture is enough. That said a tasty and trendy lunch at the oddly named, Cafe de Paris , and shopping on the fashionable Via Farini may work better for you. Hotel I Portici is very cool, but in an ordinary area close to the central station. I'd recommend hotels closer to the centro storico. A great city but for 2 days on the way to Venezia, perhaps?