While the original intent—and still a major focus—of the Wisconsin Highways website was to catalog the various numbered Interstate, US and State Trunk-designated highway routes, there are other types of marked routes in the state. Some of the "other" routes are posted along the state highways, while others have nothing to do with the state-maintained system of highways. Because of this, the signing of some of these "other" types of routes may be less than thorough and detailed maps may need to be consulted in order to follow them.
- Forest Highways – Wisconsin hosts several of these routes providing all-weather access to our National Forests.
- Great Lakes Circle Tours – The Great Lakes Circle Tours are marked routes circling four of the Great Lakes, with Wisconsin hosting portions of the Lake Michigan and Lake Superior routes. This portion of the website details each of these.
- Great River Road – The Great River Road was developed by the Mississippi River Parkway Commission (MRPC) and is maintained today in Wisconsin by the Department of Transportation and county and local road agencies.
- Rustic Roads – this is a system of scenic roads across the state which posess certain "rustic" qualities and are very well marked.
- Scenic Byways – a system identifing some of the most scenic and historic state highway corridors.