I was at my public library picking up a book for my book club when I noticed that the woman ahead of me was checking out a pass to the Exploratorium for her family. I asked the librarian for more information and found out that San Francisco libraries and others in the Bay Area have a “Discover & Go” pass, which offers free and discounted tickets to attractions such as the California Academy of Sciences, the Legion of Honor, the Oakland Zoo, the Lawrence Hall of Science, and the Pacific Pinball Museum. You log in with your library card and the listings include details about the conditions and how to make online reservations. The passes can be printed at home. Read more