Wisconsin’s lighthouses have played an important role in guiding ships through the busy waters of the Great Lakes since the 19th century. Located along the shores of Lake Michigan and Lake Superior, these lights helped vessels navigate dangerous shoals, rocky coastlines, and busy harbor entrances as shipping expanded across the region. Many were constructed during the mid-1800s to support trade through major ports such as Milwaukee, Racine, and Green Bay. Well-known examples include Cana Island Lighthouse in Door County, Wind Point Lighthouse near Racine, and Raspberry Island Lighthouse in the Apostle Islands. Today many Wisconsin lighthouses have been preserved as historic landmarks and museums, offering visitors a chance to explore the state’s maritime heritage while enjoying scenic views of the Great Lakes.