Dione D.
Yelp
Yes, yes, yes! I hopped off the airplane and came straight to Historic Fort Snelling ... and recommend you do the same! A must-see during your time in the Twin Cities.
The fort was the first white settlement in the area, a military base that pretended to be a trading post. (It's actually a little disturbing to hear about how the Snellings tricked the Native Americans in the area and basically killed them off.)
However, the Fort itself is at the convergence of the Minnesota and Mississippi Rivers, and is surrounded by vast foliage. The fort is in a typical pentagon shape, and you can easily tour by starting at one spot and walking around the perimeter. About every half hour, there's something going on -- canon firings, school sessions for children, reenactments, etc. The staff is so friendly... almost too friendly! I would have finished my tour 30 minutes sooner but everyone wanted to talk to me about what was going on in their areas. :)
Also, Fort Snelling is where Dred Scott and his wife Harriet lived when they started their lawsuit to sue for their freedom. Since that "catalyzed sentiment against slave ownership" (thanks Wiki), he *basically* set off the Civil War. #NBD.
Anyway, the Fort is historic, educational, and beautiful. Carve out 2-3 hours during your trip to come take a visit. And if you live in MSP and haven't been here since first grade, bring a date to enjoy the scenery! You've got so much American history right under your nose.