New to the forum, what a great resource!

My family (DH, DS13, DD9 and I) will be heading from ME to Minneapolis next month. The trip out is by necessity more a push through and get there trip. We're planning on 2.5 days. We're contemplating going through Canada (eg north of Lake Erie) just for a change of scenery. Mapquest lists it as just an hour and a half longer. Sound reasonable? (We do have passports.)

On the return trip, will just be DD and I. I'm excited that we don't have to rush back and it can be more of an easy going roadtrip. Goal is to take a week or so- driving 1/2 days and checking out some sights other 1/2. (My biggest concern is I think about 5 hours would be my daily limit.) Taking at I94 to I90 straight across.

Looking for any suggestions on parks, historic sites, or silly/fun places to stop. Considering going into Chicago as DD is a big American Girl fan. Not sure how feasible it is to park outside and take a train in?

Thanks!
Michelle