| Units |
| National Historical Parks | Brown v Board of Education |
| National Historic Sites | Fort Larned |
| Fort Scott | |
| Nicodemus | |
| National Preserves | Tallgrass Prairie |
| Non-Units |
| National Heritage Areas | Freedoms's Frontier (Multi-State) |
| National Historic Trails | California (Multi-State) |
| Lewis & Clark (Multi-State) | |
| Oregon (Multi-State) | |
| Pony Express (Multi-State) | |
| Santa Fe (Multi-State) |