All memberships are nonrefundable and nontransferable. At least one member must be present to receive the member benefits. Add guests to any level membership for $10 per guest.

Employees of corporations with Corporate Memberships receive a 15% discount on family memberships. University students, active military, and seniors receive a $5.00 discount on any membership with valid ID. Some special events and exhibits may require a small fee in addition to usual membership benefits and discounts.