This photo taken on Oct. 20, 2024 shows a view of the Kazan Kremlin in Kazan, Russia. Kazan is the capital city of Russia's Republic of Tatarstan. (Xinhua/Ding Haitao)

　　This photo taken on Sept. 26, 2024 shows a city view of Kazan, Russia. Kazan is the capital city of Russia's Republic of Tatarstan. (Xinhua/Cao Yang)

　　This photo taken on Sept. 24, 2024 shows a city view of Kazan, Russia. Kazan is the capital city of Russia's Republic of Tatarstan. (Xinhua/Cao Yang)

　　This photo taken on Oct. 19, 2024 shows a city view of Kazan, Russia. Kazan is the capital city of Russia's Republic of Tatarstan. (Xinhua/Cao Yang)

　　This photo taken on Oct. 20, 2024 shows a city view of Kazan, Russia. Kazan is the capital city of Russia's Republic of Tatarstan. (Xinhua/Lai Xiangdong)