Throughout Mill City Museum, there are interactive exhibits, puzzles, trains and a lock and dam water play area. I found it to be a great museum to visit with multiple age levels. My preschool-aged kids probably got nothing of the historical significance but really enjoyed the interactive part. The grade schooler asked a lot of good questions about Minneapolis history and we were able to explore the answers together.
The kids (and my) absolute favorite part was the flour tower ride. I was a little nervous going in with my somewhat sensitive four-year-old. You are riding up and down in a freight elevator and there isn't really a place to get off if it doesn't go well (although I'm sure if it became a panic issue, the volunteer guide would stop for you).I'd heard enough about it to know to expect a mock explosion at some point. My other worry was that it might just be boring for them and they would act up. Both of my fears were unnecessary. The excitement of the freight elevator going up and down and stopping at various floors was enough for my kids and we adults found the interviews and history lesson incredibly interesting and entertaining. However, when I'm visiting with just little kids, I skip the flour tower.
10 Things for Kids: Mill City Museum