Maine - Role: Building
| Falmouth House |
| Far From the Wolf |
| Farnsworth Homestead |
| Farnsworth House |
| Farrar, Samuel, House |
| Farwell Brothers Store |
| Farwell Mill |
| Fifth Maine Regiment Community Center |
| Finnish Congregational Church and Parsonage |
| First Baptist Church |
| First Baptist Church |
| First Baptist Church |
| First Baptist Church |
| First Baptist Church, Former |
| First Callahan Building |
| First Church of Belfast |
| First Congregational Church and Parsonage |
| First Congregational Church, Former |
| First Congregational Church of Buxton |
| First Congregational Church, United Church of Christ |
| First McGillicuddy Block |
| First National Bank |
| First National Bank of Houlton |
| First Parish Church |
| First Parish Church |
| First Parish Congregational Church |
| First Parish Meetinghouse |
| First Parish Meetinghouse |
| First Universalist Church |
| First Universalist Church of Sangerville |
| First Universalist Society of West Sumner |
| Fitch's General Store and House |
| Fives Court |
| Flagg, James Montgomery, House |
| Fletcher's Neck Lifesaving Station |
| Fogg, William, Library |
| (Former) Maine Central Railroad Depot |
| Former Town Office and Jail |
| Fort Edgecomb |
| Fort Fairfield Public Library |
| Fort Halifax |
| Fort Kent |
| Fort Kent Railroad Station |
| Fort McClary |
| Fort McKinley Torpedo Storehouse |
| Fort Popham Memorial |
| Fort Western |
| Foss, Horatio G., House |
| Foss, Levi, House |
| Foster Farm Barn |
| Foster-Redington House |
| Founders Hall |
| Fowler, Jeremiah, House |
| Franklin County Courthouse |
| Franklin Grange #124 |
| Franklin Towers |
| Free Baptist Church of Great Pond, The |
| Freeman Barn |
| Free Will Baptist Church and Cemetery |
| Free Will Baptist Church (Former) |
| Free Will Baptist Meetinghouse |
| Friends Meetinghouse |
| Frisbee, Frank C., Elementary School |
| Fryeburg Registry of Deeds |
| Fryeburg Town House, Former |
| Frye, Sen. William P., House |
| Fuller-Weston House |
| Gallison Memorial Library |
| Gannett, Guy P., House |
| Garcelon, A. A., House |
| Gardiner Railroad Station |
| Garland Grange Hall |
| Gates House |
| Gay-Munroe House |
| Gehring Clinic |
| Genthner, Ernest and Louise, House |
| Gerald, Amos, House |
| Gerald Hotel |
| German Church and Cemetery |
| Gilead Railroad Station |
| Gilman, Daniel Coit, Summer Home |
| Gilmore House |
| Glidden-Austin Block |
| Godfrey-Kellogg House |
| Goodale-Bourne Farm |
| Goodale-Stevens Farm |
| Goodall, Louis B., Memorial Library |
| Goodall, Thomas, House |
| Goodridge Corner School |
| Goodspeed Memorial Library |
| Goodwin, Edmund E., House |
| Goold House |
| Gordon Fox Ranch |
| Gorham Campus Historic District |
| Gothic House, The |
| Gould House |
| Governor Brann School |
| Governor's House |
| Grace Episcopal Church |
| Grand Army Memorial Home |
Data from United States Park Service and Wikidata
