• San Francisco
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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.

Gangu County, which belongs to Tianshui City, Gansu Province, is located in the southeast of Gansu Province, northwest of Tianshui City, and upstream of Weihe River. It is bordered by Qinan County and Maiji District in the east, Qinzhou District and Lixian in the south, Wushan County in the west and Tongwei County in the north. The total area is 1572.6 square kilometers. As of 2012, Gangu County has a total population of 630000. The famous specialties of Gangu County are hemp shoes, ridges, fried potatoes, Gangu pulp water surface, crisp circles and so on. The famous figures of Gangu County are Pan Qinyue, Shi Zuoshu, Gong Jianfeng, Jiang Wei, Mrs. Yin and so on. Gangu County has won the honorary titles of "hometown of National Pepper" and "hometown of Chinese Pepper". On April 28, 2019, the Gansu provincial government approved Gangu County to formally withdraw from the poverty-stricken county.
Travel Sights In GanGuXian
Travel Notes In GanGuXian