Tourists take a special hop-on hop-off bus which travels between landmark "red sites" in east China's Shanghai, Oct. 3, 2021. (Photo: Xinhua)
Tourists take photos at the memorial of the first National Congress of the Communist Party of China (CPC) in east China's Shanghai, Oct. 3, 2021.(Photo: Xinhua)
Tourists take photos at the site of the first National Congress of the Communist Party of China (CPC) in east China's Shanghai, Oct. 3, 2021.(Photo: Xinhua)
Tourists take photos at the memorial of the fourth National Congress of the Communist Party of China (CPC) in east China's Shanghai, Oct. 3, 2021.(Photo: Xinhua)