Fourth place: Ningbo Ningbo, a sub-provincial city in Zhejiang Province and a city with separate plans, is an important port city in the southeast coast of China and an economic center in the south wing of the Yangtze River Delta approved by the State Council. Ningbo is located in the east of China, on the southeast coast, in the middle of the mainland coastline, in the south wing of the Yangtze River Delta, with Zhoushan Islands as a natural barrier in the east. Ningbo is a typical Jiangnan water town and seaport city. It is the southern port of China's Grand Canal and the eastern port of origin of the Maritime Silk Road. Ningbo is a famous historical and cultural city in China. In the Xia Dynasty, more than 2000 years BC, Ningbo was famous for its Yin Dynasty, and it belonged to Yue State in the Spring and Autumn Period. In Qin Dynasty, it belonged to Yin, Zhi and San counties in Huiji County, and was called Mingzhou in Tang Dynasty. In the first year of Changqing in the Tang Dynasty (82 1), the Mingzhou government moved to Sanjiangkou to build an inner city, marking the beginning of Ningbo's urban construction. In the 14th year of Ming Hongwu (138 1 year), it was renamed as Ningbo, which means "sea regulation and boning" and has been used ever since. It is the hometown of famous academicians in China. Fifth place: Yantai Yantai, a prefecture-level city in Shandong Province, is one of the central cities of Shandong Peninsula in China approved by the State Council, an important port city in the Bohai Rim region and a national historical and cultural city. Yantai is located in the east of China, northeast of Shandong Peninsula, bordering Weihai in the east, Weifang and Qingdao in the west, Yellow Sea in the south, Bohai Sea in the north, and Liaodong Peninsula and Dalian across the sea. It is an important node city in the Bohai Economic Circle, one of the first batch of 14 coastal open cities in China, a coastal city in China and a "Belt and Road" country.