Posters depicting key moments in San Francisco history will be decorating bus shelters on Market Street beginning today.Each of six posters in the 2011 Art on Market Street Poster Series — titled “Once Upon a Time” — focuses on a phase of San Francisco history and includes a map of the Market Street area that shows the sites of lost landmarks, according to the San Francisco Arts Commission.The images were created by San Francisco-based artist Elishvea Biernoff. Read More