9Duomo di Milano

The most visited spot in Milan is its great gothic cathedral, the largest of its kind which can hold up to 40,000 people inside. Its construction began in 1386, with the purpose of modernising the area after Gian Galeazzo Visconti came into power.

But even so, it took five whole centuries for the masterpiece to be completed. During this time, many architects, artists and sculptors worked on its construction, resulting in a building which merged the Gothic and Romanesque styles.