The Montreal Botanical Garden is beautiful. I'm glad I was able to walk around through the various gardens and appreciate all the flowers in bloom. They have an extensive collection of glass houses filled with exotic plants from all over the world. Quite magnificent.
I really loved being able to walk around in nature and take photos. Highly recommend if you are a nature lover. This is next to the Biodome as well - so why not kill 2 birds with one stone if you have the time. (Note: Don't confuse this with the little garden next to the Biosphere which is a different museum. It happens to the best of us!)