Bergamo, in Lombardy very close to Orio al Serio Airport, located less than an hour away by train from Milan, you can take the train to the central station (green line of metro) and from there go in this town. Bergamo is divided into Upper Town and Lower Town that is the most similar feature an old village, you will find several old buildings such as the Cathedral, the museums, Basilica of Santa Maria Maggiore, the Colleoni Chapel and several squares.
I would recommend this to anyone other than the city has ever seen, if only for a day, or in milan tourists or travelers who travel Orio al Serio. Below you will find some pictures taken in this city.
