Massachusetts - Role: Building
| Lane, Fitz Henry (formerly known as Fitz Hugh), House |
| Lane, Job, House |
| Langmaid Building |
| Langmaid Terrace |
| Larches, The |
| Larch Farm |
| Larchmont |
| LaRochelle, Napoleon, Two-Family House |
| Larrabee's Brick Block |
| Larson, Swan, Three-Decker |
| Laurel Hall |
| Lawrence Academy |
| Lawrence Light Guard Armory |
| Lawrence Model Lodging Houses |
| Lawrence, Phineas, House |
| Lawrence, William, House |
| Leavitt-Hovey House |
| Lechmere Point Corporation Houses |
| Lee, Jeremiah, House |
| Lee Station |
| Legg, John, House |
| Leland, Deacon William, House |
| Lennon, Edward J., House |
| Lenox Academy |
| Lenox High School |
| Lenox Library |
| Lenox Railroad Station |
| Leominster High School |
| Leonard, Capt. Charles, House |
| Leonard, James, House |
| Leonard School |
| Leonard. Shaw & Dean Shoe Factory |
| Levenson, Morris, Three-Decker |
| Lewis, Charles D., House |
| Lewis, Deacon Willard, House |
| Lewis House |
| Lewis, Joshua, House |
| Libby, Nelson F., House |
| Liberty Farm |
| Liberty Hall |
| Lincoln, Ambrose, Jr., House |
| Lincoln, Asa, House |
| Lincoln, Gen. Benjamin, House |
| Lincoln, Gen. Thomas, House |
| Lincoln, Gov. Levi, House |
| Lincoln House Club |
| Lincolnshire, The |
| Lindsey, William, House |
| Little, Arthur D., Inc., Building |
| Littlefield-Roberts House |
| Livermore, William, House |
| Locke, Asa, House |
| Locke-Baldwin-Kinsley House |
| Locke, Capt. Benjamin, House |
| Locke, Capt. Josiah, House |
| Locke, Lt. Benjamin, Store |
| Locke-Ober Restaurant |
| Locke School |
| Lockhardt, Charles H., House |
| Lodge, Henry Cabot, House |
| Long Plain Friends Meetinghouse |
| Long Plain School |
| Lord-Baylies-Bennett House |
| Lord's Castle |
| Loring, George, House |
| Loring-Greenough House |
| Loring, Harrison, House |
| Lothrop, Caleb, House |
| Lothrop, H.B., Store |
| Lothrop, Joseph, House |
| Lothrop Memorial Building-G.A.R. Hall |
| Lovejoy, A. L., House |
| Lovejoy, Charles, House |
| Lovell Block |
| Lovell, Capt. George, House |
| Lovell, Nehemiah, House |
| Lovering, Joseph, House |
| Lowell Post Office |
| Lowell's Boat Shop |
| Lowell School |
| Lowell, The |
| Lowney Chocolate Factory |
| Low, Thomas, House |
| Luke, Arthur F., House |
| Lumb, Thomas, Three-Decker |
| Lumb, Thomas, Three-Decker |
| Lundberg, Charles, Three-Decker |
| Luther House |
| Luther Store |
| Luther, William, House |
| Lyman Block |
| Lyman, Theodore, School |
| Lynch-O'Gorman House |
| Lynn, Armory |
| Lynn Bank Block |
| Lynn Item Building |
| Lynn Masonic Hall |
| Lynn Memorial City Hall and Auditorium |
| Lynn Public Library |
| Lynn Realty Company Building No. 2 |
Data from United States Park Service and Wikidata
