Contact Viator for an email address to get the pass from saves a call from overseas. Well worthwhile.
As we had a pass for nearly all Museums and galleries from a friend in NY this pass wasn't so helpful.
Only Empire State and Best of NY Circle Line was useful, but not worth the saving really, saved only a few dollars, also was asked to stump up an extra 5 for Circle Line Best of NY tour.
Easy way to see 3 sights and prepay in Cdn
We did Empire State, Circle Line Cruise and 4 hour Central Park bike tours
Picked up pass at Madame Tussads.