San Francisco has more restaurants per capita than any other American city. And many of those restaurants reflect cooking from their home country. This map shows the history and influence of various cuisines. And some are origin stories of what are now familiar food.
This includes audio stories about each restaurant or store. This map is a project of the California Migration Museum.
Melting Spots Immigrant Food Map
By the way, the Garlic Noodles at Thanh Long are worth the trip to the outer, outer Sunset District. They will change your life. Plus very few visitors ever make it out that far, so you not only have an amazing meal, you will have bragging rights.