Illinois - Area of significance: Landscape Architecture
| Allerton, Robert, Estate |
| Alta Vista Terrace Historic District |
| Alton National Cemetery |
| Armour Square |
| Becker, A. G., Property |
| Bohemian National Cemetery |
| Chicago Golf Club |
| Chicago Park Boulevard System Historic District |
| Chippiannock Cemetery |
| Cluever, Richard, House |
| Columbus Park |
| Columbus Park |
| Coonley, Avery, School |
| Cornell Square |
| Davis Square |
| Denkmann-Hauberg House |
| Florsheim, Harold, House |
| Fort Sheridan Historic District |
| Fuller Park |
| Garfield Park |
| Gillson Park and Wilmette Harbor Historic District |
| Graceland Cemetery |
| Grand Crossing Park |
| Grand View Drive |
| Grant Park |
| Greenwood Cottage |
| Hamilton Park |
| Holmes, Samuel, House |
| Humboldt Park |
| Indian Boundary Park |
| Jackson Park Historic Landscape District and Midway Plaisance |
| Jacoby, Lysander, House |
| Jensen, Jens, Summer House and Studio |
| Lake Forest Cemetery |
| Lake Forest Historic District |
| Lathrop, Julia C., Homes |
| Lincoln, Abraham, Memorial Garden |
| Lincoln Park |
| Lincoln Park Lily Pool |
| Loeb, Ernest, House |
| Logan Square Boulevards Historic District |
| Lowell Park |
| Millikin, James, House |
| Oakland Cemetery Historic District |
| Oak Ridge Cemetery |
| Olympia Fields Country Club |
| Oughton, John R., House |
| Palmer Park |
| Portage Park |
| Promontory Point |
| Pullman Historic District |
| Ragdale |
| Ravisloe Country Club |
| Ridge Historic District |
| Ridgeland-Oak Park Historic District |
| Riis, Jacob A., Park |
| Riverside Landscape Architecture District |
| Robinson-Stewart House |
| Rosewood Park |
| Scoville Place |
| Shakespeare Garden |
| Sherman Park |
| Springdale Cemetery |
| Tinker Swiss Cottage |
| Trumbull Park |
| Washington Park |
| Washington Park |
| Wild Flower and Bird Sanctuary in Mahoney Park |
| Wing Park Golf Course |
| Woodland Cemetery |
Data from United States Park Service and Wikidata
