New York - Role: Building
| Lake Street Historic District |
| Lake View Grange No. 970 |
| Lakewood Village Hall |
| Lamb's Club |
| Lampman, William, House |
| Lancaster District School No. 6 |
| Lancaster Municipal Building |
| Lance Farm |
| Land Office |
| Landon, Samuel, House |
| Landsberg, William, House |
| Lane Cottage |
| Langdon Estate Gatehouse |
| Langmuir, Irving, House |
| Lanier, James F. D., Residence |
| Lansingburgh Academy |
| Lapham, Ambrose S., House |
| Laraway, John and Martinus, Inn |
| Larchmont Avenue Church |
| Larom Cottage |
| Larom-Welles Cottage |
| Larrowe House |
| Larzelere Tavern |
| Lasell Hall |
| Lasher-Davis House |
| Lasher, George, House |
| Latimer Reef Light Station |
| LaTourette House |
| Lattin-Crandall Octagon Barn |
| Lattingtown Baptist Church |
| Laurel and Michigan Avenues Row |
| Lawrence Memorial Chapel and Cemetery |
| Lawton, George H., House |
| Lawyer, Johannes Jr., House |
| Lawyers Cooperative Publishing Company Complex |
| Lay, Hiram, Cobblestone Farmhouse |
| Leavenworth Apartments |
| Lebanon Springs Union Free School |
| LeDoux/Healey House |
| Leech-Lloyd Farmhouse and Barn Complex |
| Leech-Parker Farmhouse |
| Leeds Dutch Reformed Church |
| Lee, Higginson & Company Bank Building |
| Lee School |
| Leetch, Dr. Henry, House |
| LeFevre, Abraham and Maria, House |
| Lefferts-Laidlaw House |
| Leffingwell-Batcheller House |
| LeGrange Farmstead |
| Lehigh Valley Railroad Depot |
| Lehigh Valley Railroad Station |
| Lehigh Valley Railroad Station |
| Lehman, John, House |
| Leis Block |
| Leis Cottage |
| Leland Castle |
| Lenox District No. 4 Schoolhouse |
| Lent Cottage |
| Lent Homestead and Cemetery |
| Leon Grange No. 795 |
| Leon United Methodist Church |
| Leopold Street Shule |
| LeRay Hotel |
| LeRay Mansion |
| LeRay, Vincent, House |
| LeRoy, Daniel, House |
| LeRoy House and Union Free School |
| Lescaze House |
| Level Club |
| Lever House |
| Levor, Gustav, House |
| Lewis Avenue Congregational Church |
| Lewis, Harry and Molly, House |
| Lewis House |
| Lexington House |
| Leyden Common School No. 2 |
| Liberty Tower |
| Liddle, Alexander, Farmhouse |
| Liddle, Robert, Farmhouse |
| Liddle, Thomas, Farm Complex |
| Liebler-Rohl Gasoline Station |
| Life Savers Building |
| Lil's Diner |
| Lincoln, Anselm, House |
| Lincoln Building |
| Lincoln Club |
| Lincoln School |
| Linde Air Products Factory |
| Linlithgo Reformed Church of Livingston |
| Lion Factory |
| Lipe Farm |
| Lipe-Rollway Corporation Building |
| Lisanti Chapel |
| Lisbon Railroad Depot |
| Lisbon Town Hall |
| Lispenard-Rodman-Davenport House |
| Litchfield Villa |
| Lithuanian Alliance of America |
| Lithuanian National Association Hall |
| Little Falls City Hall |
Data from United States Park Service and Wikidata
