Architecture of San Francisco

The architecture of San Francisco is not so much known for defining a particular architectural style, rather, with its interesting and challenging variations in geography and topology and tumultuous history, San Francisco is known worldwide for its particularly eclectic mix of Victorian and modern architecture. Bay windows were identified as a defining characteristic of San Francisco architecture in a 2012 study that had a Machine learning algorithm examine a random sample of 25,000 photos of cities from Google Street View.

Icons of San Francisco architecture include the Golden Gate Bridge, Alcatraz Island, Coit Tower, the Palace of Fine Arts, Lombard Street, Alamo Square, and Chinatown.