San Francisco, officially the City and County of San Francisco, is the leading financial and cultural center of Northern California and the SF Bay Area. It is the most densely settled large city in the state of California and the second-most densely populated major city in the United States after New York City. with a population of 805,235 people, is San Francisco, after Los Angeles, San Diego and San Jose, the fourth most populous city in California.

SF is located on the West Coast of the United States at the north end of the San Francisco Peninsula and includes significant stretches of the Pacific Ocean and San Francisco Bay within its boundaries. Several islands—Alcatraz, Treasure Island and the adjacent Yerba Buena Island, and small portions of Alameda Island, Red Rock Island, and Angel Island—are part of the city. Also included are the uninhabited Farallon Islands, 27 miles (43 km) offshore in the Pacific Ocean. The mainland within the city limits roughly forms a "seven-by-seven-mile square," a common local colloquialism referring to the city's shape, though its total area, including water, is nearly 232 square miles (600 km2).

The city is famous for ist hills,too. There are exactly 42. Some neighborhoods are named after the hill on which they are situated, including Nob Hill, Potrero Hill, and Russian Hill.

SF (Spanish for "Saint Francis") was founded on June 29, 1776, from spanish colonist.

The climate is influenced by the situation at the Pacific primarily of the northern cold California current. Therefore San Francisco has exceptionally cool and rainless summers and mild and rainy winters. The hotest months are September and oktober.

After NY have SF the biggest Chinatown in the USA, but there are more men than women. There is a high earthquake risk. The worst earthquake was on April 18th, 1906, which killed 3000 People and destroyed 75% of california. Experts fear more earthquakes in the next 30 years, which are so bad as that on 1906

SF is known for it victorian houses,which are build in the middle of the 19. century.But cause o fthe earthquake 1906 the half houses were destroyed, so the price increased about the hundredfold. Near the catrals and museums there are many sightseeings, like the market street, where you can go shopping, or the transamerica pyramid.A 260 metre high scyscrapper with 48 floors.It was build from 1969 to 1972 under the architect william pereia. But the probably popularest sightseeing ist the world-famous golden gate bridge.The architect from the 2,8km long and 25m wide bridge is joseph b strauss. The bridge was completed on April 19th, 1937, and authorized for the traffic officially on May 28th the year.It is the connection between the Pacific Ozean and the San Francisco Bay. And it’s 67m high and 2739m long. In the past many people who have considered to commit suicide, jumped off the Golden Gate Bridge. Nowadays it’s secured with a higher fence.