Yes, Cold, you have a point. And I think anyone that's travelled - especially overseas - may come across that.
I hate to admit ignorance of geography (since, I think I'm well informed in that subject), but when I went to Germany in my early 20's, I had no idea of Cologne - a city of well over a million back then (and a beautiful city).
At the same time though, there are plenty of cities about the same size that are well known - Zurich, Liverpool, Dublin, Glasgow, Dubai, Nice, etc....
While, at the other end are plenty of cities (such as those in China and India) which can be as large as TO that not too many know of.
I think its a matter of how/what they contribute to the world (in those I listed, I think that's obvious
), and I guess I like to think that most Canadian cities have contributed on many fronts.