As far as brewery tours go in Chicago, the Goose Island Beer Company should be a definite stop on your tour. Goose Island is a national favorite so unlike the Coors brewing factory, this place is actually a real treat. Goose Island beers change seasonally and have amazing flavors. Some of them are so dense that they have 10% alcohol. The bartenders are obviously extremely knowledgeable about the collection. They will sit down at your table and talk to you for a while if asked.