Hi! There are four...
1. The Making of a Fresco Showing the
Building of a City ("Making a Fresco")
(1931) is one of four murals in the Bay
Area painted by Mexican artist Diego
Rivera. There is a fresco within the fresco
showing the building of a modern city,
including portraits of many of the
individuals who worked directly on
the fresco or indirectly as advisors and
patrons.
San Francisco Art Institute
http://www.sfai.edu/diego-rivera-mural
http://www.sfai.edu/resources-and-other-locations
http://muralsandmosaics.org/rivera2.html
2. The Allegory of California
San Francisco City Club (formerly the Stock Exchange)
310 Pine Street
http://deyoung.famsf.org/allegory-california-diego-rivera-city-club-san-francisco
3. Pan American Unity
Diego Rivera Theater, City College of San Francisco
50 Phelan Avenue
http://www.ccsf.edu/NEW/en/about-city-college/diego-rivera-mural.html
4. Still Life and Blossoming Almond Trees
Stern Hall, University of California, Berkeley campus
You can read all about them in the links.
http://traveltips.usatoday.com/visit-diego-rivera-murals-san-francisco-11763.html
http://www.foundsf.org/index.php?title=Diego_Rivera_in_San_Francisco
https://www.google.com/search?q=diego+rivera+mural+in+california&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-beta
I hope this helps! :)