Sat.–Sun., Oct. 24–25, 11 a.m.–6 p.m.
Herbst Pavilion, Fort Mason Center
The oldest and largest open studios event in the country showcases a multitude of artists, styles, and media; come celebrate with performance art, music, workshops, and art for sale. Other studios throughout the city are open each weekend through October and the first weekend in November; visit website for details. Free, 415-861-9838, artspan.org