If you have a railway buff then a side trip to Revelstoke to see the Revestoke Railway Museum which would be a 2.5 one way drive from Lake Louise.
Railway Buff StuffYou would travel right by the Spiral Tunnel over Kicking House Pass, past Field B.C. down into Golden B.C. and then over Roger pass to Revelstoke .There is also more Railway Buff stuff part way over the Roger Pass at the Roger Pass Historic site ( interactive centre) they have a large railway display on the CPR and the early days coming through the mountains, a must see for a railway buff. Can't miss this place it is right beside the Hwy.
More Railways Buff StuffAlso if you happen to travel up Hwy 2 towards Calgary from Fort McCloud stop in Naton and see the Bomber Command Museum of Canada. It is right down town on the side of the Hwy and there is a Lancaster Bomber on site as well as a few other WWII aircraft.
Bomber Command Soup.