City view of SW China's Chongqing

This photo taken on Oct. 30, 2023 shows the city view of southwest China's Chongqing Municipality. Located in the upper reaches of the Yangtze River, Chongqing has continuously built itself into a significant ecological barrier. (Xinhua/Wang Quanchao)

Visitors pose for photos in southwest China's Chongqing Municipality, Oct. 30, 2023. Located in the upper reaches of the Yangtze River, Chongqing has continuously built itself into a significant ecological barrier. (Xinhua/Wang Quanchao)

This photo taken on Oct. 30, 2023 shows the city view of southwest China's Chongqing Municipality. Located in the upper reaches of the Yangtze River, Chongqing has continuously built itself into a significant ecological barrier. (Xinhua/Wang Quanchao)

A visitor takes photo in southwest China's Chongqing Municipality, Oct. 30, 2023. Located in the upper reaches of the Yangtze River, Chongqing has continuously built itself into a significant ecological barrier. (Xinhua/Wang Quanchao)

This photo taken on Oct. 30, 2023 shows the city view of southwest China's Chongqing Municipality. Located in the upper reaches of the Yangtze River, Chongqing has continuously built itself into a significant ecological barrier. (Xinhua/Wang Quanchao)

This photo taken on Oct. 30, 2023 shows the city view of southwest China's Chongqing Municipality. Located in the upper reaches of the Yangtze River, Chongqing has continuously built itself into a significant ecological barrier. (Xinhua/Wang Quanchao)

This photo taken on Oct. 30, 2023 shows the city view of southwest China's Chongqing Municipality. Located in the upper reaches of the Yangtze River, Chongqing has continuously built itself into a significant ecological barrier. (Xinhua/Wang Quanchao)

This photo taken on Oct. 30, 2023 shows the city view of southwest China's Chongqing Municipality. Located in the upper reaches of the Yangtze River, Chongqing has continuously built itself into a significant ecological barrier. (Xinhua/Wang Quanchao)

This photo taken on Oct. 30, 2023 shows the city view of southwest China's Chongqing Municipality. Located in the upper reaches of the Yangtze River, Chongqing has continuously built itself into a significant ecological barrier. (Xinhua/Wang Quanchao)

This photo taken on Oct. 30, 2023 shows the city view of southwest China's Chongqing Municipality. Located in the upper reaches of the Yangtze River, Chongqing has continuously built itself into a significant ecological barrier. (Xinhua/Wang Quanchao)