Swan Oyster Depot is a seafood eatery and cultural landmark located in the Polk Gulch neighborhood of San Francisco , California . It opened there in 1903 and except for a brief hiatus and rebuilding period following the 1906 San Francisco earthquake , it has been running continuously in the same venue since that time . This makes it one of the longest continuous businesses and dining establishments in the United States . Swan 's menu has remained largely unchanged throughout its history , and it has had exactly the same 18 wooden stools and marble counter that were installed for the post-earthquake reopening in 1912
1906 San Francisco earthquake
1906 San Francisco earthquake
Swan Oyster Depot