I am heading out to Grand Rapids for the week to visit the in-laws (Allendale Twnshp and Jenison, technically, but we'll probably spend much of our time in the city.) I've been there a few times and hit the Meier Gardens, the Children's Museum, the zoo, and the Public Museum.
Any recommendations of things to see that may interest an urban planner in that area? Remember that (1) it will be cold out and (2) I'll have young kids in tow. Thanks.