One year family membership.  Includes 2 free admissions to the TI Founders IMAX Theater and the Planetarium.  Other benefits include reciprocal admission in over 200 science museums worldwide, discount on birthday parties, Science Workshops, summer/spring break camps, invitations to exhibit previews and members-only events, newsletter subscription, priority admission, gift shop discounts, discounts to the Planetarium and IMAX Theater and admission to the Hand in Hand program.