2. Milan Milan is known for its fashion, the elegant Duomo cathedral, the La Scala opera house, and the Pirelli skyscraper. This amazing metropolis is both the largest business hub and one of Italy’s oldest cities. Post navigation 29+ of the Most Dangerous Sports in the World, From Sky Diving to Heli-Skiing 38 most dangerous dogs breed around the world that you should know 1 2 3 4 5 6 7 8 9 10