Did you know that you can get free passes for Zoo New England, the Isabella Stewart Gardner or the Museum of Science from the West Roxbury Library? Well, now you can also reserve the passes online.
Follow this link to the Boston Public Library system reservation and questions page about the free passes.
It is recommended that you reserve your passes 60 days in advance. You may not reserve more than one pass during a 30-day period.
But it's just not the aforementioned museums, there are many more, so click on the link and see what's for free.