Los Angeles (US: /lɔːs ˈændʒələs/ (listen) lawss AN-jəl-əs;[a] Spanish: Los Ángeles [los ˈaŋxeles], lit. 'The Angels'), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world's most populous megacities. Los Angeles is the commercial, financial, and cultural center of Southern California. With a population of roughly 3.9 million residents within the city limits as of 2020, Los Angeles is known for its Mediterranean climate, ethnic and cultural diversity, being the home of the Hollywood film industry, and its sprawling metropolitan area. The city of Los Angeles lies in a basin in Southern California adjacent to the Pacific Ocean in the west and extending through the Santa Monica Mountains and north into the San Fernando Valley, with the city bordering the San Gabriel Valley to its east. It covers about 469 square miles (1,210 km2), and is the county seat of Los Angeles County, which is the most populous county in the United States with an estimated 9.86 million residents as of 2022.
Siyang is located in Subei Plain, one of the "Ten New Tianfu" in China, belongs to the Yangtze River Delta region, is the Huaihai Economic Circle, the Yangtze River Delta Economic Circle and the cross radiation area along the canal town axis. Siyang faces the hometown of Zhou Enlai Huai'an to the east, Suqian the hometown of King Xiang to the west, Shuyang, the hometown of flowers and plants to the north, and Hongze Lake to the south, facing Sihong, Hongze and Xuyi across the lake. The Siyang section of the Grand Canal of China (the Beijing-Hangzhou Grand Canal and the ancient Yellow River heritage site) is on the World Heritage list. It has the reputation of "plain, forest and sea, Xanadu". Siyang has a history of more than 5000 years of civilization and more than 2000 years of history of establishing a county, where the north and south cultures are integrated. Siyang was once the capital of Sishui in the Western Han Dynasty more than two thousand years ago. It has been established at the county level in 2233 years, and it was crowned twice in the Western Han Dynasty, which was called "Surabaya" in history, which lasted for 134 years. Siyang is China.