I heard someone say Milan is not fun, so I didn't plan to go to Milan, just for a transfer to stay for one night, but in fact, the impression of it is quite good. Milan is Italy's second largest city, Italy's most developed city and Europe's four largest economic centers, famous fashion and art capitals, opera and football are also famous. Of course, it is also one of the transport hubs in Europe, of which Milan Central Station is the largest railway station in Europe and Italy. The most important thing to miss for tourists is the Milan Cathedral.