The 9/11 Memorial is free and open to the public seven days a week, 8 a.m.–8 p.m.
911 Museum is no longer part of Sightseeing Passes,
there are still options for free entry on Mondays between 5.30 and 7pm, but tickets are limited, please visit www.911memorial.org
Sightseeing Pass offers free entry to 9/11 Museum Workshop