People buy snacks on the Central Avenue in Harbin, capital of northeast China's Heilongjiang Province, Aug. 9, 2019. Dubbed as "China's Ice City", Harbin has entered its peak season for tourism. By tasting local food, visiting Western-style buildings and enjoying the river breeze, tourists can explore the charming nature of the city, a combination of vigor and grace. (Xinhua/Wang Jianwei)