To go to Vienna, you have to go to the golden hall to experience the concert, without preplanning and booking tickets. There are only five tickets per ticket on the spot. Finally, you know that the ticket is a stop ticket. You need to deposit your backpack and coat when you enter the door. When you enter the hall, you see all the white-haired old people in the front row. You marvel at the good life and taste of the old people there.