The Kremlin mainly looks at the church buildings in the Central Plaza. Ticket sales and online ticket exchanges are at the Alexandria Garden subway exit. Ticket offices are complex, and different tickets correspond to different windows. On-site ticket buying is the innermost window, and there are more people queuing. Several windows (about windows 5-7) outside are for the exchange of online tickets and the purchase of weapons depots and diamond foundation tickets. It is suggested to buy it on the official website first, because there is almost no queue in the exchange window. Warehouse tickets must be booked for a certain period of time, but the Diamond Foundation can now enter the warehouse directly without going through the warehouse (after buying tickets at the ticket office, go directly to the southwest corner gate of Alexander Garden). Apart from winter, there is a Presidential Guard performance in the middle of the square every Saturday noon. It's very cool. It's better to go to the front row of the square at about 11:30. The group inside the complex can not take photos, please note.