| Notable Historic Site | State | Significance |
| Tuskegee Airmen | |
| Brown v. Board of Education | |
| Saugus Iron Works | |
| Steamtown | |
| Minuteman Missile | |
| Andersonville | |
| Manzanar | |
| Wa****a Battlefield | |
| Whitman Mission | |
| Harry S. Truman | |
| Fort Davis | |
| Kate Mullany House | |
| Carl Sandburg Home | |
| First Ladies | |
| Puʻukoholā Heiau | |
| | Notable Historic Site | State | Significance |
| Golden Spike | |
| Andrew Johnson | |
| Touro Synagogue | |
| Knife River Indian Villages | |
| Bent's Old Fort | |
| Clara Barton | |
| Camden Revolutionary War Site | |
| Fort Bowie | |
| Little Rock Central High School | |
| Lincoln Home | |
| Grant-Kohrs Ranch | |
| Saint-Gaudens | |
| Fort Laramie | |
| Herbert Hoover | |
| Jamestowne | |
|