jlisi984, there's a tool a FTer has created that lists routes various airlines fly. You could use it as a rough guide as to how to get from YYC-PER by selecting your start city and end city and see what common points in Europe come up.

http://www.flyertalk.com/forum/trave...-released.html

Otherwise, yes, it's going to just be hard looking. The published routing depends on the published fare you're looking at, as ExpertFlyer Voice commented before. If you give us a better idea of what you're trying to look for, there are other tools that might help you better. For example, kayak.com offers a tool where you can select what layover airports you want.

Hope this helps!