San Diego (/ˌsæn diˈeɪɡoʊ/ SAN dee-AY-goh, Spanish: [san ˈdjeɣo]; Spanish for 'Saint Didacus') is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles.
Yicheng District, which belongs to Zaozhuang City, Shandong Province, is located in the south of Zaozhuang City, Shandong Province, which is the south gate of Shandong Province, close to Xuzhou City, and is located in the center of Huaihai Economic Zone. Yicheng District, formerly known as Yixian County, the birthplace of Zaozhuang City, has been the prefecture and county government for more than 4000 years since the Xia Dynasty. The main tourist attractions in the territory are Guanshi pomegranate Garden, Sanjin Academy, Kuangheng Tomb, Immortal Cave and so on. Guanshi pomegranate Garden has more than 5.3 million pomegranate trees and 48 varieties, which is the largest pomegranate garden in China. It is certified as "the most Guinness of Guinness" by the Guinness headquarters of Shanghai World, so it is known as "Guinness Pomegranate Garden". In 2018, Caocheng District had jurisdiction over 2 streets and 5 towns, with a total registered public security population of 427542, with a regional gross domestic product (GDP) of 18.398 billion yuan.