Opera Scala, opposite the square, is a 200-year-old opera house. It was put into use in 1778, and is known as the "four opera houses in the world", the Vienna State Opera, the Royal Opera House, and the American Metropolitan Opera. Even if it can't be seen outside, it is so famous, but the inside is magnificent, especially the emperor's box in the middle of the second floor, it is even more embedded in gold and silver, silk blankets and velvets, and it is also considered luxurious. Who would have thought that during World War II, the theater was bombed and the entire performance hall was not covered. What you see is the postwar Italian government allocated huge funds to rebuild it at the highest standards of the time. Although it was the morning, the opera house did not arrange for the repertoire to be painted, but many tourists still came to the door to queue up, do a good job of waiting for the visit. The Opera House has a museum of theatres, 4 or 5 small exhibition rooms, which display precious collections of opera and theatre history, such as paintings, manuscripts, statues, costumes and other documents. There is also a theater library, which houses 80,000 copies of theatrical art books in different languages. If you don't catch a cold on the history of opera and want to have an experience of opera art, you can make an appointment on the official website in advance to see if there is a heart. If there is no reservation, you can only take your luck to see if there are remaining tickets. Generally, the on-site ticket purchase is not only expensive, but the location is either biased or far away. If you watch the opera, pay attention to the following points: 1. It is recommended to attend evening dress, that is, ladies wear dresses, men wear evening dresses. If there is no dress, men can wear suits, shirts, trousers, not slippers, sneakers, shorts, sportswear; Women can wear long skirts, but do not wear sneakers, slippers, sportswear; try not to wear jeans. 2. You cannot sit or walk around after the opening, and those who are late can only enter the scene. 3. You are not allowed to use mobile phones during the performance, cameras with or without flash and audio/video recording equipment. 4, the opera house has free storage, hard items, such as umbrellas, backpacks, cameras must be stored.