Located in the southwest of California, Los Angeles is the second largest city in the United States, second only to new york, the largest metropolis in the west and the largest seaport in the United States. As one of the centers of world culture, science, technology, international trade and higher education, it also has world-renowned institutions in various professional and cultural fields. In this city and its neighboring areas, Los Angeles has become the largest petrochemical, marine, aerospace and electronic industrial base in the United States. It is one of the major science and technology centers in the United States, with the largest seaport in the western United States and the title of "City of Science and Technology". Los Angeles has become the financial center of the United States after new york. On March 5th, 20 14, Los Angeles decided to ban smoking e-cigarettes in some public places (restaurants, bars, parks and other non-smoking areas). Kobe Bryant, captain of the Los Angeles Lakers, is one of the symbols of this city.

Los Angeles is close to the coast of San Pedro Bay and Santa Monica Bay on the east side of the vast Pacific Ocean, and backed by the vast San Gabriel Mountain, with an area of 1290.6Km? . Metropolitan areas include Los Angeles County, Orange County, Ventura County and Riverside County.

County) and part of San Bernardino County, as well as more than 80 towns and cities such as Beverly Hills, Pasadena and Long Beach, with a total area of 10567Km? . The city is located in an open basin surrounded by mountains on three sides and facing the sea on one side. Except for some hills, the ground is flat, with an average elevation of 84 meters, and the highest point, Elsie Peak, is 1548 meters.