It may not be a postcard town for tourists, but Milan has been host to a unique kind of migration all its own. After World War II, the city received an influx of migrants who fled from the impoverished south of Italy to seek factory work in the more industrialized north. The city began expanding outward due to its growing population, causing a boom in not only the number of people, but also the city’s overall diversity. In addition to attracting some of the most style-obsessed Italians from other regions of the country, since the 1970s, Milan has become a hub for immigrants from Albania, Egypt, Ecuador, and China as well. The city has opened its walls again and again, to both people and events—design week in April, fashion week in September and February—gradually and energetically reinventing itself over and over during the last five decades.