SFGuessr

Test your knowledge of San Francisco's history through photos!

SFGuessr is a game featuring thousands of historic photographs from the OpenSFHistory archive. Each round presents you with a random photo from San Francisco's past and your mission is to guess both the year it was taken and pinpoint its exact location on a map.

HOW TO PLAY • View a historic photo of San Francisco • Guess the year (1849-2003) • Drop a pin on the map where you think the photo was taken • Earn up to 5,000 points per round based on accuracy • Complete 5 rounds and see your final score

SCORING Each round awards up to 2,500 points for year accuracy and 2,500 points for location accuracy. Get within a few years and meters to maximize your score. Perfect game: 25,000 points.

CHALLENGE MODE Create a challenge and share it with friends! Everyone plays the same 5 photos, then compare scores on the leaderboard. See who really knows San Francisco best.

FEATURES • 46,000+ historic photos spanning 150+ years • Challenge friends with shareable links • Track your in-game progress with detailed round breakdowns • Learn the history behind every photo • Free to play!

POWERED BY OPENSFHISTORY Every photo comes from the OpenSFHistory archive, a cornerstone of San Francisco's visual history maintained by the Western Neighborhoods Project.

Whether you're a lifelong San Franciscan, a history enthusiast, or just love a good guessing game, SFGuessr offers endless discovery and friendly competition.

Download now and start exploring!