All - Constructed - 1900–1909
| Gund Brewing Company Bottling Works |
| Gunning-Purves Building |
| Gunnison Tunnel |
| Gunther Brewing Company |
| Gustad, Bernt, House |
| Hacienda Iruena Manor House |
| Hackett, Edward Alexander Kelley, House |
| Haddon Hall |
| Hadley-Ludwick House |
| Hahne and Company |
| Halfway House |
| Hall, Gov. Luther, House |
| Hambley-Wallace House |
| Hamilton Catholic High School |
| Hamilton County Memorial Building |
| Hamilton-Donald House |
| Hammond, E. C., House |
| Hanna House |
| Hanna, Howard M., Jr., House |
| Hanson, Alfred, House |
| Hanson, Soren, House |
| Hardy, Thomas P., House |
| Hargis-Mitchell-Cochran House |
| Hargrave Military Academy |
| Harlinsdale Farm |
| Harper County Courthouse |
| Harriman, L. F., House |
| Harris County Courthouse of 1910 |
| Harris, Dr. J. H., House |
| Harris House |
| Harris, Louis W., House |
| Harrison, William G., House |
| Harry Evans Bridge |
| Hartness House |
| Harvard Stadium |
| Haskell Free Library and Opera House |
| Hastings Brewery Building and Bottling Works |
| Hatch's Department Store |
| Hathaway |
| Hawkeye Creek Bridge |
| Hawkins, Dr. E. P., Clinic, Hospital and House |
| Hawthorne Class Studio |
| Hawthorne Glove and Novelty Company-Shrader Drug Company Building |
| Hayes-Byrum Store and House |
| Hazeltine, A. J., House |
| Hazelwood Brewing Company |
| Hearst Greek Theatre |
| Hearst Memorial Mining Building |
| Heaviest Corner on Earth |
| Hemingway, Ernest, Cottage |
| Henderson County Courthouse |
| Henderson Fire Station and Municipal Building |
| Hendricks Confectionery Building |
| Hendricks, Thomas A., Library |
| Henry, C. K., Building |
| Herman House |
| Hermitage Hotel |
| Herndon Home |
| Hess, A. B., Cigar Factory, and Warehouses |
| Hetland School |
| Heurtley, Arthur, House |
| Heyrman, Henry and Mary, House |
| Hibbs, W. B., and Company Building |
| Higginson, Henry, House |
| Highland Christian Church |
| Highland House |
| Highland Park |
| Highland Park Manufacturing Company Mill No. 3 |
| Hill, Gov. John F., Mansion |
| Hill, Matt and Emma, Historic Farmstead |
| Hill, Sam, Hardware |
| Hillsboro Inlet Light Station |
| Hillsborough Railroad Bridge |
| Hills Memorial Library |
| Hinde & Dauch Paper Co. |
| Hinman Apartments |
| Hispanic Society of America Complex |
| Hjertoos, Andrew and Bergette, Farm |
| Hobart Rock Island Depot |
| Hobbs Creek Truss Leg Bedstead Bridge |
| Hocking, Alfred, House |
| Hodges-Runyan-Brainard House |
| Hodges-Sipple House |
| Hoffman Apiaries |
| Hoffman, Phil, House |
| Hogeland, Abraham and Mary Walton, House |
| Holland, George, House |
| Holley-Mason Building |
| Hollywood High School Historic District |
| Holmberg and Johnson Blacksmith Shop |
| Holmes, Oliver Wendell, House |
| Holtzendorf Apartments |
| Holy Family Church, School, and Rectory |
| Holy Name Church Rectory, Convent and School |
| Holy Trinity Greek Orthodox Church |
| Holy Trinity Russian Orthodox Cathedral and Rectory |
| Hooker Apartments |
| Hooper Island Light Station |
| Hoover, Alexander, House |
| Hope House |
Data from United States Park Service and Wikidata
