• San Francisco
  • Baiyin

San Francisco (/ˌsæn frənˈsɪskoʊ/; Spanish for "Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California in the United States. The city proper is the fourth most populous in California and 17th most populous in the United States, with 815,201 residents as of 2021. It covers a land area of 46.9 square miles (121 square kilometers), at the end of the San Francisco Peninsula, making it the second most densely populated large U.S. city after New York City, and the fifth most densely populated U.S. county, behind only four of the five New York City boroughs. Among the 91 U.S. cities proper with over 250,000 residents, San Francisco was ranked first by per capita income (at $160,749) and sixth by aggregate income as of 2021. Colloquial nicknames for San Francisco include SF, San Fran, The City, Frisco, and Baghdad by the Bay.

San Francisco and the surrounding San Francisco Bay Area are a global center of economic activity and the arts and sciences, spurred by leading universities, high-tech, healthcare, FIRE, and professional services sectors. As of 2020, the metropolitan area, with 6.7 million residents, ranked 5th by GDP ($874 billion) and 2nd by GDP per capita ($131,082) across the OECD countries, ahead of global cities like Paris, London, and Singapore. San Francisco anchors the 13th most populous metropolitan statistical area in the United States with 4.6 million residents, and the fourth-largest by aggregate income and economic output, with a GDP of $669 billion in 2021. The wider San Jose–San Francisco–Oakland, CA Combined Statistical Area is the fifth most populous, with 9.5 million residents, and the third-largest by economic output, with a GDP of $1.25 trillion in 2021. In the same year, San Francisco proper had a GDP of $236.4 billion, and a GDP per capita of $289,990. San Francisco was ranked seventh in the world and third in the United States on the Global Financial Centres Index as of March 2022.

Baiyin, prefecture-level city of Gansu Province. Located in the middle of Gansu Province, located in the transitional zone between the Loess Plateau and Tengger Desert, most of the territory is mountainous, mountainous and wide valley plain coexist; it is the transition zone from mid-temperate semi-arid zone to arid zone. The city has a total area of 21158.7 square kilometers and has jurisdiction over 2 districts and 3 counties. By the end of 2018, Baiyin had a resident population of 1.7342 million, an increase of 4900 over the end of last year. Baiyin City is located in the upper reaches of the Yellow River and the middle of Gansu Province, located in the confluence zone of the ancient Silk Road and the Yellow River, connecting the desert to the north, Qinghai and Tibet to the south, the Central Plains to the east and the western region to the west, 69 kilometers away from the provincial capital Lanzhou and 46 kilometers away from Zhongchuan Airport. It is a strategic channel connecting the subcontinental bridge, a transportation corridor and an energy logistics channel to countries along the Silk Road. The territory of Baiyin
Travel Sights In Baiyin
Travel Notes In Baiyin