All - Architectural style - Neoclassical architecture
| Arizona Pioneers' Home |
| Arizona State Capitol Building |
| Arkansas Bank & Trust Company |
| Arkansas State Capitol |
| Arlington Branch Library and Fire Hall |
| Arlington Memorial Bridge |
| Arlington Reservoir |
| Arlington School |
| Armitage, Joshua and Martha, House |
| Armstrong House-Allen Academy |
| Arnold, Thomas P., House |
| Arsenal Junior High School |
| Artz Building |
| Ashcrest Farm |
| Ashland County Courthouse |
| Ashland Grade School |
| Ashwood School |
| Assington |
| Associated Reformed Presbyterian Church |
| Association of the Bar of the City of New York |
| Astor on the Lake |
| Atchison County Memorial Building |
| Atchison County Memorial Hall |
| Atchison, Topeka and Santa Fe Railway Locomotive Shops |
| Athenaeum Press |
| Atkins High School (former) |
| Atkinson County Courthouse |
| Atkinson Hall, Georgia College |
| Atlanta Public Library |
| Atlantic Motor Company (127-6163) |
| Auburn Community Mausoleum |
| Audrain County Courthouse |
| Augusta County Training School |
| Auld Public Library |
| Aurora Apartments |
| Aurora Hotel |
| Austin, A. Everett, House |
| Autrey-Williams House |
| Autry, James L., House |
| Axtell, Dr. William H. and Frances C., House |
| Ayer, Frederick, Mansion |
| Ayer Public Library |
| Babcock, Dr. Raymond, House |
| Babylon Library, The |
| Bacon County Courthouse |
| Badger State Shoe Company |
| Baker, Alexander, School and E.W. Backus Junior High School |
| Baker-Carmichael House |
| Baker, J. Thompson, House |
| Baker, William, House |
| Baldwin, Fred C., Memorial Home |
| Ballinger Carnegie Library |
| Balmer & Weber Music House Co. Building |
| Bancroft Hotel |
| Bancroft School |
| Bangs-Wineman Block |
| Bank of Alamo |
| Bank of American Fork |
| Bank of Commerce |
| Bank of Ensley |
| Bank of Everglades Building |
| Bank of Fairhope |
| Bank of Italy, Merced |
| Bank of Loleta |
| Bank of Los Banos Building |
| Bank of Napa |
| Bank of St. Albans Building |
| Bank of Tracy |
| Bank of Webster |
| Banks-Mack House |
| Barber, Henry D., House |
| Barboursville Historic District |
| Barclay, Dr. Forbes, House |
| Barden-O'Connor House |
| Bardsley, Joseph, House |
| Barleywood |
| Barnard Block |
| Barnes, Frank C., House |
| Barnes-Laird House |
| Barney, H. S., Building |
| Barrett, Randolph Columbus, House |
| Barr Hotel |
| Bartell, Fred, House |
| Bartlett, Walter M., Double House |
| Baskerville Apartment Building |
| Bastrop County Courthouse and Jail Complex |
| Batavia Veterans Administration Hospital |
| Bates, Asa, Memorial Chapel |
| Bayfield County Courthouse |
| Bayne House |
| Bayou Bend |
| Beallair |
| Beallmore |
| Beare, Harriet and Thomas, House |
| Beatty-Corbett House |
| Beatty, Ross, House |
| Beaumont Commercial District (Boundary Increase) |
| Beaumont Telephone Exchange Building |
| Beaver Opera House |
| Beckley-Ralston Company |
Data from United States Park Service and Wikidata
