Maine - Criteria: A (event)
| Dyke Mountain Annex |
| Eagle Island |
| Early Post Office |
| East Blue Hill Library |
| East Blue Hill Post Office |
| East Eddington Public Hall |
| East Harpswell Free Will Baptist Church |
| East Machias Historic District |
| East Main Street Historic District |
| Eastman Hill Rural Historic District |
| East Vassalboro Grist and Saw Mill |
| Eaton House |
| Eaton School |
| Egg Rock Light Station |
| Eighth Maine Regiment Memorial |
| Elder Grey Meetinghouse |
| Ellsworth Power House and Dam |
| Elms |
| Embden Town House |
| Emery Homestead |
| Emery House |
| Emery School |
| Engine Company Number Nine Firehouse |
| Enterprise Grange, No. 173 |
| Everett Chambers |
| Evergreen Cemetery |
| Excelsior Grange #5 |
| Falmouth High School |
| Falmouth House |
| Farmington Historic District |
| Farwell Mill |
| Federal Street Historic District |
| Fiddler's Reach Fog Signal |
| Finnish Congregational Church and Parsonage |
| First Baptist Church |
| First Baptist Church of Bowdoin and Coombs Cemetery |
| First Congregational Church and Parsonage |
| First Parish Meetinghouse |
| Fitch's General Store and House |
| Fletcher's Neck Lifesaving Station |
| Fogg, William, Library |
| (Former) Maine Central Railroad Depot |
| Former Town Office and Jail |
| Fort Baldwin Historic Site |
| Fort Edgecomb |
| Fort Fairfield Public Library |
| Fort George |
| Fort Gorges |
| Fort Kent |
| Fort Kent Railroad Station |
| Fort Knox State Park |
| Fort McClary |
| Fort O'Brien |
| Fort Point Light Station |
| Fort Popham Memorial |
| Fort Pownall Memorial |
| Fort Sullivan |
| Fort Western |
| Fort William Henry |
| Foster Family Home |
| Founders Hall |
| Fowler, Jeremiah, House |
| Frankfort Dam |
| Free Baptist Church of Great Pond, The |
| Freeman Barn |
| Freeman Farm Historic District |
| Freeport Main Street Historic District |
| Free Will Baptist Meetinghouse |
| Frenchville Railroad Station and Water Tank |
| Friends Meetinghouse |
| Frisbee, Frank C., Elementary School |
| Frost Garrison and House |
| Fryeburg Registry of Deeds |
| Fryeburg Town House, Former |
| Gallison Memorial Library |
| Gannett, Guy P., House |
| Gardiner Historic District |
| Garland Grange Hall |
| Gates House |
| Gehring Clinic |
| Georges River Canal |
| Gerald Hotel |
| German Church and Cemetery |
| Gilman, Daniel Coit, Summer Home |
| Glidden-Austin Block |
| Goat Island Light Station |
| Goodale-Bourne Farm |
| Goodale-Stevens Farm |
| Goodall, Louis B., Memorial Library |
| Goodspeed Memorial Library |
| Goose Rocks Light Station |
| Gordon Fox Ranch |
| Gorham Campus Historic District |
| Gorham Historic District |
| Governor Brann School |
| Governor's House |
| GRACE BAILEY (two-masted schooner) |
| Grand Army Memorial Home |
| Grand, The |
| Grand Trunk Railroad Station |
Data from United States Park Service and Wikidata
