The Exploratorium is located inside the Palace of Fine Arts in San Francisco's Marina District. Museum admission is as follows: Members FREE; Adults (18-64) $13.00; University Students (with ID) $10.00; Senior Citizens (65+) $10.00; People with disabilities $10.00; Youth (13-17) $10.00; Children (4-12) $8.00; Children Under 4 FREE. First Wednesdays of the month FREE. Exploratorium hours are TUESDAY THROUGH SUNDAY 10am-5pm, CLOSED MONDAYS, except for Martin Luther King Jr. Day, Presidents' Day, Memorial Day and Labor Day. The Exploratorium is wheelchair accessible. For information, call (415) EXP-LORE.