Short Road Bike Rides in Michigan

Since the summer of 2004, my wife and I have owned a tandem bicycle and have gone on many excursions around Michigan.
We live in the Southeast part of Michigan; Metro Detroit area. So, we started doing our regular bike rides around our neighborhood. However, we purchased a guide book called 'short Bike Rides in Michigan' by Pamela Stovall. We started picking rides we could do within a couple hundred mile radius of our home. Something we could do on weekend getaways. Being that we had to get 'in shape', we chose to do rides that were on primarily flat roads. We were trying to limit the up and down hills. That first summer, we were doing about 25 to 30 miles a day, Monday through Friday, after work.
On the weekends, we would throw the bike on our bike rack, and head out. One of the first rides we did in the guidebook was out near Sturgis and Colon, Michigan. It was a 30 mile ride out on Farm roads. We road by many small lakes, pretty views, and a few Amish farms. It was an awesome ride and we stopped in Colon. Known for being the 'Magic' capital of the world, it was a neat place to checkout.
Colon is a small small town. However, the magic shop was pretty cool. Evidently, many magicians through the years had settled there, died there, and were buried there. There was a magic show, and a chance to buy some neat tricks.
I especially enjoyed the ride out in the farm country, looking for miles across the land and open skies. The guidebook had us start at a small park with a small lake and small beach. We had a blast. We checked off the ride in the book, rated it, and made a note to do it again.