All - Architectural style - Renaissance Revival architecture
| Kress Building |
| Kress Building |
| Kress, S.H., and Co. Building |
| Kromer Flats |
| Krumberg, Theodore, Building |
| Krum, Hiram, House |
| Kuhnen, Nicholas J., House |
| La Belle Iron Works |
| Ladentown United Methodist Church |
| Ladson Presbyterian Church |
| La Fargeville United Methodist Church |
| Lafayette Square Historic District |
| LaGrange |
| Laird, Norton Company Building |
| Lake Mansion |
| Lakeview School |
| Lakeville Historic District |
| Lambert-Parent House |
| Lambertville House |
| Lancaster District School No. 6 |
| Lancaster Historic District |
| Land Bank Building |
| Landrum, Andrew J., House |
| Landward House |
| Lange Hotel |
| Lang-Hess House |
| Langhorne House |
| Langston, John Mercer, School |
| Lansford Historic District |
| Larchmont |
| Larrowe House |
| Lasalle, Koch and Company Department Store |
| Lathrop Hall |
| Laurel and Michigan Avenues Row |
| Laurel Hill Historic District |
| Laurel-Rex Fire Company House |
| Lawrence County Courthouse |
| Lawrence Public School |
| Lawson, James and Mary, House |
| Lawton Place Historic District |
| Layman, Christopher C., Law Office |
| Leacock Sporting Goods Company Building |
| Lebanon Commercial Historic District |
| LeDroit Park Historic District |
| Lee, Captain Daniel S. and Fannie L. (Brooks), House |
| Leftwich House |
| LeGrange Farmstead |
| Lehi Main Street Historic District |
| Leigh, Benjamin Watkins, House |
| Leinenweber, Christian, House |
| Le Mars Public Library |
| Lemley-Wood-Sayre House |
| Lemont Methodist Episcopal Church |
| Lennox Hotel |
| Leonard, Clifford Milton, Farm |
| Lessland |
| Levering Hall |
| Levi-Moses House |
| Levi-Topletz House |
| Lewis, A. T., and Son Department Store |
| Lewis County War Memorial and Louis Bennett Library |
| Lexington Historic District |
| Lexington House |
| Liberty Fire Company No. 5 |
| Liberty Hall |
| Liberty Hall |
| Library Park Historic District |
| Lick, James, Mill |
| Light Hall |
| Light, Jacob, House |
| Lincoln County Courthouse |
| Lincoln Courthouse Square Historic District |
| Lincoln Heights Branch |
| Lincoln Theater and Commercial Block |
| Lindemann and Hoverson Company Showroom and Warehouse |
| Linden |
| Lindsay, James E., House |
| Lindsey, Christiana, House |
| Linganore Farm |
| Link, Theodore, Historic Buildings |
| Linlithgo Reformed Church of Livingston |
| Linn, Howard and Lucy, House |
| Lionville Historic District |
| List, Henry K., House |
| Litchfield Villa |
| Little Rock City Hall |
| Little Sisters of the Poor Home for the Aged |
| Littleton Creamery-Beatrice Foods Cold Storage Warehouse |
| Littleton Town Hall |
| Livestock Exchange Building |
| Livingood House-Stryker Hospital |
| Lloyd, Harold, Estate |
| Lobdell Estate, Minquadale Home |
| Lockwood-Mathews Mansion |
| Logan House |
| Lombard Building |
| Londontown Manufacturing Company, Inc. |
| Long and Third Commercial Building |
| Longmont Carnegie Library |
| Long, R.A., Building |
Data from United States Park Service and Wikidata
