As a student, I wanted to take advantage of the free Tuesday admission at the ROM. First of all, the architecture of this museum is very beautiful. You can wander for hours and still find more to see! If you get hungry, there is a cafeteria on site with a variety of food and desserts. There's even a small aquarium filled with tropical fish in the mammal exhibit.
This museum is definitely a must if you live in the area or are just visiting. They bring in new and temporary exhibits frequently so keep an eye out for those!