San Francisco is a hilly city on the tip of a peninsula surrounded by the Pacific Ocean and San Francisco Bay. It's known for its year-round fog, iconic Golden Gate Bridge, cable cars and colorful Victorian houses. The Financial District's Transamerica Pyramid is its most distinctive skyscraper. In the bay sits Alcatraz Island, site of the notorious former prison.
Though San Francisco is a world-class city, for locals it can feel more like a loose affiliation of small towns strewn over the hills, threaded together with gravity-straining streets, an astounding 220 public parks, and dozens of hidden staircases. For a city that's roughly just 49 square miles, it seems crazy that you can walk not five minutes and seemingly pass through four totally different neighborhoods. New neighborhoods are attempting to be born all the time.