A well-preserved three-story Victorian mansion, Haas-Lilienthal House is a gem of San Francisco and the city's only intact private home of the period that is open regularly as a museum. The 130-year-old house preserves the stories of Jewish immigrants in the development of the American West.

It's all there, awaiting discovery for the curious, whether out-of-town visitors interested in learning about the city's Jewish past or locals who want to get in touch with the Jewish city that was.

J. Weekly recently caught up with John Rothmann, whose forbearers built the house and lived there, to discuss the significance of Haas-Lilienthal House in the history of San Francisco. "This is a national treasure," says Rothmann, "This is the only home you can go to [in order] to understand the Jewish roots of San Francisco."

The next time you're in San Francisco, make sure to stop by and take a tour of this historic home.

You can read the whole story, Time-tripping through San Francisco's Jewish story, on J. Weekly's website.