Maine - Role: Building
| Grand, The |
| Grand Trunk Railroad Station |
| Grand Trunk Railroad Station |
| Granite Store |
| Grant Family House |
| Grant, Gooden, House |
| Grant, Peter, House |
| Grant, William F., House |
| Graves, Abbott, House |
| Gray House, Old |
| Gray Memorial United Methodist Church and Parsonage |
| Greenacre |
| Greene Cottage |
| Green Memorial A.M.E. Zion Church |
| Greenough, Byron, Block |
| Greenwood, Chester and Isabel, House |
| Greenwood Garden Playhouse |
| Greenwood Town Hall, Former |
| Greer's Corner School |
| Grey Havens Inn |
| Griffin House |
| Grindle Point Light Station |
| Guilford Memorial Library |
| Gushee Family House |
| Gustaf Adolph Lutheran Church |
| Hall, Enoch, House |
| Hall House |
| Hall's Tavern |
| Hamblen Block |
| Hamilton, Jonathan, House |
| Hamilton, Thomas, House |
| Hamlin, Hannibal, House |
| Hammond, Edward J., Hall |
| Hammond Street Congregation Church |
| Hampden Academy |
| Hampden Congregational Church |
| Hancock County Jail |
| Hancock, John, Warehouse |
| Hancock Point School |
| Hanson, Asa, Block |
| Harmony Hall |
| Harper Family House |
| Harpswell Meetinghouse |
| Harriman School |
| Harrington Meetinghouse |
| Harris, Nathan, House |
| Hartford Fire Station |
| Harward Family House |
| Hasey's Maine Stages Building |
| Haskell, Squire Ignatius, House |
| Hatch House |
| Hathaway Barn |
| Hathorn Hall, Bates College |
| Hathorn, Lt. John, House |
| Hawkes Pharmacy |
| Hawthorne, Nathaniel, Boyhood Home |
| Hayford Block |
| Heald House |
| Healey Asylum |
| Heal Family House |
| Herald Building |
| Herbert, The |
| Hershey Plow Company Building |
| Hexagon Barn |
| Heywood, Phineas, House |
| Hichborn, Nathan G., House |
| Higgins Barn |
| Highseas |
| Hill, Gov. John F., Mansion |
| Hinckley, Ward, House |
| History House |
| Hobbs, Thomas, Jr., House |
| Hodgkins, Ella R., Intermediate School |
| Holden, Samuel, House |
| Holden Town Hall |
| Holland, Captain, House |
| Holland-Drew House |
| Holmes Cottage |
| Holmes-Crafts Homestead |
| Holmes, Dr. Job, House |
| Holmes, Sen. John, House |
| Homer, Winslow, Studio |
| How, Daniel, House |
| Howels, William Dean, House |
| Hubbard-Cotton Store |
| Hudson, H., Law Office |
| Hulls Cove High School |
| Hunniwell, Richard, House |
| Hurd, Mary R., House |
| Huse, John E.L., Memorial School |
| Hussey-Littlefield Farm |
| Hussey Plow Company Building |
| Huston House |
| Hutchins, Frank, House |
| Hutchins House |
| Hutchins, Moses, House |
| Hyde Mansion |
| Indian River Baptist Church |
| Influence, The |
| Ingalls House |
Data from United States Park Service and Wikidata
