Green Bay is a simple town, content with their all too brief football season (which is pored over year round), their beer, and their dairy products. A lot of the tourism revolves around the former and with good reason. The Packers have a storied history and they are usually a contender. Lambeau Field tours are a notable summer time attraction, when the games cease. The National Railroad Museum, dedicated to Green Bay's extensive Freight, industry is also a nice warm weather attraction. In summer an old school locomotive ride is included with the price of admission.
The history and current status of the self-proclaimed "oldest Midwest settlement" is chronicled thoroughly at the Oneida National Museum. And of course the Oneida Casino is not far down the road. Like any Wisconsin town, a day trip to the coast or a quick jaunt to a nearby pristine natural setting are interesting ways to mix it up.