sentences:  It curates and hosts a broad array of exhibitions each year in collaboration with other institutions.The museum's education programs include public tours, classes and workshops, film screenings, lectures and gallery talks, performances, teacher training, school visits, family tours and art making, and a teen internship program.The museum's main building is the former Pacific Gas & Electric Jessie Street Substation, which was originally built in 1881 and was rebuilt in 1907 by Willis Polk after the 1906 San Francisco earthquake.