The YBCA, which opened in 1993, anchors the sprawling Yerba Buena complex, with two buildings that offer music, theater, dance, and visual arts programs and shows. It’s a bit of an architectural showpiece in its own right as well: James Stewart Polshek designed the 755-seat theater, and Fumihiko Maki designed the Galleries and Arts Forum, which features three galleries and a space designed especially for dance. Exhibits range from architecture to activism as well as traveling versions of shows for other museums. Tip: For the cost of viewing YBCA’s curated monthly series of video or film screenings—mostly experimental film and documentaries—you can get into YBCA’s galleries for free.