Restrictions may apply. Passes are good for one-time admission to each of the participating museums and attractions. Passes are valid for seven days beginning on start date. Limited blackout dates may apply. Passes may not be combined with any other discount programs or special offers from the museums and attractions. No refunds are available for unused tickets. Please check the schedules for museums and attractions in advance to ensure they are open during the days of your visit. All special exhibitions at participants are included in the pass prices. Passes are available through December 31, 2013.