I've had a chance to tour the Commemorative Air Force Museum in Duluth a couple of times.  Almost better than seeing the planes and historical pieces is hearing the stories the guys have.

On Wednesday, the Air Power Tour makes a stop at The Commemorative Air Force Museum. They will have a B-29 Superfortress, a C-35 Expeditor, a T-6 Texan, and a PT-13 Stearman on display. Rides will also be available!

In addition to the planes there will be an antique car show, BBQ and live music. It starts on Wednesday the 2nd and runs through the 6th with different activities each day.  You can find the Commemorative Air Force Lake Superior Squadron 101 Hanger at 4931 Airport Road in Duluth.

Hours, pricing and more information here.