Here is a cool freebee offered by Toronto Library.
With the Sun Life Financial Museum and Arts Pass (MAP), you and your family can explore the best of Toronto's arts and cultural treasures for free.
With a valid adult Toronto Public Library card, you can borrow a MAP for your family at any Toronto Public Library branch. Quantities are limited and borrowing rules apply.
For deteils check here --> http://www.torontopubliclibrary.ca/spe_ser_museum_arts_pass.jsp