Exploratorium is a fun place for kids, as it is for adults. Science is fun in this setting, where you can touch things and explore. It's next to the Palace of Fine Arts.
Open Tue-Sun 10am-5pm
Closed Mon (except Memorial Day, Labor Day, Martin Luther King Day, and President's Day), Thanksgiving, and Christmas Day.
Admission: $10; tactile dome $14 (requires advance purchase and reservation, and includes general admission). Free admission on the first Wednesday of the month.
Phone: (415) 563-7337
Muni 30 to end of line, 76