I'm not a nature-lover by any means - I'll take the concrete jungle and the great indoors over green grass and open air any day. The Montreal botanical garden was really nice and gave me a tad more appreciation for the outdoors.
There are many photo opps from the Chinese garden to the weeping willows of the Arboretum to the koi pond and crooked bridge of the Japanese Garden. Parts of it are really artificial like the stone mountain but this is a family/tourist attraction so I'll let it go. There's so much to see with each specialty garden, green house and plant collection.