Wisconsin - Criteria: A (event)
| Hortonville Community Hall |
| Hotel Laack |
| Hotel Loraine |
| Hotel Northland |
| Hotel Rogers |
| Hoyt, Frank W., Park |
| Hudson Public Library |
| Huron Street Historic District |
| Hutchinson Memorial Library |
| Hyer's Hotel |
| Independent Order of Odd Fellows-Lodge #189 Building |
| Indianapolis Outing Club |
| Ingebretson, Gaute, Loft House |
| Iowa Street Historic District |
| Janesville Cotton Mill |
| Jefferson Fire Station |
| Jischke's Meat Market |
| Johnston Hall |
| Jones, Huff, House |
| Juneau County Courthouse |
| Juneau Highlands Residential Historic District |
| Kaukauna Locks Historic District |
| Kellogg Public Library and Neville Public Museum |
| Kendall Cabinet Shop |
| Kenosha County Courthouse and Jail |
| Kenosha Light Station |
| Kenosha North Pierhead Light |
| Kewaunee County Sheriff's Residence and Jail |
| Kimberly Point Park Lighthouse |
| Klein Dairy Farmhouse |
| Kliese Housebarn |
| Kohler, John Michael, House |
| Kohlmann, Friederich, House |
| Kurth, John H., and Company Office Building |
| Lachmund Family House |
| La Crosse Armory |
| LaCrosse Commercial Historic District |
| La Crosse County School of Agriculture and Domestic Economy |
| LaCrosse State Teachers College Training School Building |
| Lafayette County Courthouse |
| LAKELAND (steam screw) Shipwreck |
| Lake View Sanatorium |
| Lamar Community Center |
| Langdon Street Historic District |
| La Pointe Indian Cemetery |
| La Pointe Light Station |
| Lappin-Hayes Block |
| LaPrairie Grange Hall No. 79 |
| Larson Brothers Airport |
| Larson, L. A., & Co. Store |
| Lathrop Hall |
| Laue, Frederick, House |
| Lauerman Brothers Department Store |
| Lawson Airplane Company-Continental Faience and Tile Company |
| Lawton, C. A., Company |
| Leopold, Aldo, Shack |
| Library Park |
| Library Park Historic District |
| Lincoln County Courthouse |
| Lindauer and Rupert Block |
| Linden Methodist Church |
| Little Kaukauna Lock and Dam Historic District |
| Little Norway |
| Little White Schoolhouse |
| Lodi School Hillside Improvement Site |
| Lohman Funeral Home and Livery Stable |
| Loreto Shrine Chapel |
| Lovejoy and Merrill-Nowlan Houses |
| LUCERNE (Shipwreck) |
| Lutheran Indian Mission |
| Lutze Housebarn |
| Machinery Row |
| Mackie Building |
| Madison Brass Works |
| Madison Candy Company |
| Madison Gas and Electric Company Powerhouse |
| Madison Masonic Temple |
| Madison Waterworks |
| Main Hall/La Crosse State Normal School |
| Main Hall, Lawrence University |
| Main Street Commercial Historic District |
| Main Street Commercial Historic District |
| Main Street Commercial Historic District |
| Main Street Commercial Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| MAJOR WILBUR FR. BROWDER (tugboat) |
| Manitou Camp |
| Manitowoc County Courthouse |
| Mansion Hill Historic District |
| Marathon County Fairgrounds |
| Marion Park Pavilion |
| Marshfield Central Avenue Historic District |
Data from United States Park Service and Wikidata
