All - Constructed - 1880–1889
| 19th Street Bridge |
| 75th Police Precinct Station House |
| 7th District Police Station |
| Abbey, The-Joaquin Miller House |
| Abbot, Edwin, House |
| Abraham Hall |
| Abrams Building |
| Acadia Ranch |
| Adair County Courthouse |
| Adams, Amos, House |
| Adams Building |
| Adams-Higgins House |
| Adams Odd Fellows Hall |
| Adams School |
| Ada Pennsylvania Station and Railroad Park |
| Adelbert Hall, Case Western Reserve University |
| Adgate Block |
| Adolph Block |
| Ainsworth House |
| Alamo Hotel |
| Albany City Hall |
| Albion Carpet Mill |
| Albion Methodist Church |
| Alden Villa |
| Alert-Hatcher Building |
| Aline Covered Bridge |
| Allen Chapel A.M.E. Church |
| Allen County Courthouse |
| Allen-Mangum House |
| Allen School |
| Allison-Reinkeh House |
| All Saints Church at Monie |
| All Saint's Episcopal Church |
| All Saints Episcopal Church |
| All Saints' Episcopal Church |
| All Saints School Main Building |
| Allyn, A. H., House |
| Alma City Auditorium and Sale Barn |
| Amazeen House |
| Ambrose-Ward Mansion |
| American River Grange Hall No. 172 |
| American Shoal Light |
| Ames Building |
| Ames, Josiah A., House |
| Ames Monument |
| Amherst Town Hall |
| Ammendale Normal Institute |
| Anclote Key Lighthouse |
| Anderson Barn |
| Anderson Chapel |
| Anderson, D. H., House |
| Anderson, James, House |
| Anderson Lumber Company |
| Andrews Memorial Chapel |
| Anglecot, The |
| Anna Head School for Girls |
| Anna Town Hall |
| Antwerp Norfolk and Western Depot |
| Apalache Mill |
| Apartment Building at 27 and 31 Peru Street and 29 Johnson Street |
| Applegate, Leslie T., House |
| Appleton Woolen Mills |
| Appomattox Statue |
| Arcade Hotel |
| Arilsen, Ole, House |
| Arista Cotton Mill Complex |
| Arizona Daily Star Building |
| Arizona Methodist Church |
| Arizona Rancho |
| Arkwright Bridge |
| Arlington Hotel |
| Arlington Hotel |
| Armory Park Historic Residential District |
| Armsby Block |
| Armstrong, John M., House |
| Armstrong, M. and Company Carriage Factory |
| Army Medical Museum |
| Arnold, Adam C., Block |
| Arrowston |
| Arthur, L. J., House |
| Ashland Dam and Spillway |
| Ashworth, John, House |
| Assay Office |
| Association Residence Nursing Home |
| Astral Apartments |
| Attleborough Falls Gasholder Building |
| Auburn Fire House No. 1 |
| Austin-Whittemore House |
| Ayer, Alfred, House |
| Ayres, Nathan, House |
| Babcock, Havilah, House |
| Bachelder, Thomas Foxwell, Barn |
| Bacon, Clifton, House |
| Bailetti House |
| Bailey House |
| Baird, E. J., House |
| Baird, George W., House |
| Baker, Charles, Property |
| Baker, David S., Estate |
| Baker House |
Data from United States Park Service and Wikidata
