1916 Buffalo High School (Cass County, North Dakota)
29 Diner (Fairfax, Virginia)
A. A. Erhard House (Bastrop County, Texas)
A. Grubb House (Jessamine County, Kentucky)
A. P. Carter Homeplace (Scott County, Virginia)
A. R. Carroll Building (Washington County, Arkansas)
A.D. Strickland Store (Whitfield County, Georgia)
A.S. Cooper Farm (Ashe County, North Carolina)
Aaron A. Sargent House (Nevada County, California)
Aaronsburg Historic District (Centre County, Pennsylvania)
Abel Hyatt House (Swain County, North Carolina)
Aberdeen Gardens (Hampton, Virginia)
Abraham Beydler House (Shenandoah County, Virginia)
Abraham Elder Stone House (Centre County, Pennsylvania)
Academy Street Historic District (Rockingham County, North Carolina)
Ackerville Baptist Church of Christ (Wilcox County, Alabama)
A historic church in Ackerville, Alabama.
Adairsville Historic District (Bartow County, Georgia)
Adam Orris House (Cumberland County, Pennsylvania)
Adam Wall House (Montgomery County, Virginia)
Adams Covered Bridge (Morgan County, Ohio)
Covered bridge over San Toy Creek on San Toy Road south of Portersville
Aderholdt's Mill (Calhoun County, Alabama)
Adin Supply Company (Modoc County, California)
Adolph A. Erhard House (Bastrop County, Texas)
Adolphus W. Umstead House (Durham County, North Carolina)
Agnes Horton House (Boone County, Kentucky)
Aillet House (West Baton Rouge Parish, Louisiana)
Alamo Methodist Church (Bexar County, Texas)
Alapaha Colored School (Berrien County, Georgia)
Albin B. Swindell House and Store (Hyde County, North Carolina)
Alcovy Road Grist Mill (Gwinnett County, Georgia)
Alexander Campbell Mansion (Brooke County, West Virginia)
Alexander Hotel (Tattnall County, Georgia)
Alexander St. Clair House (Tazewell County, Virginia)
Alexandria Cemeteries Historic District (De Kalb County, Tennessee)
Alexandria City Hall (Alexandria, Virginia)
Alf Jung House (Bastrop County, Texas)
Alfred and Jane Ables House (Marion County, Georgia)
Alfred M. Bergere House (Santa Fe County, New Mexico)
Alice Druhot House (Multnomah County, Oregon)
Allamakee County Courthouse (Allamakee County, Iowa)
Allen-Bell House (Bastrop County, Texas)
Allentown Mill (Monmouth County, New Jersey)
Altamont Hotel (Fayette County, West Virginia)
Altaville Grammar School (Calaveras County, California)
Alvah Stone Mill (Franklin County, Massachusetts)
Amiss--Palmer House (Montgomery County, Virginia)
Ammie Wilson House (Collin County, Texas)
Anchorage, The (Northumberland County, Virginia)
Anderson Camp Ground (Anderson County, Texas)
Anderson House (Botetourt County, Virginia)
Anderson Lodge (Park County, Wyoming)
Anderson's Mill (Spartanburg County, South Carolina)
Historic Mill in Spartanburg, SC
Andrew Carpenter House (Gaston County, North Carolina)
Andrew J. Warner House (Weber County, Utah)
Andrew Johnson National Historic Site (Greene County, Tennessee)
Andrew P. Hansen Farmstead (Audubon County, Iowa)
Andrew Powell Homestead (Hancock County, Ohio)
Andrews-Moore House (Franklin County, North Carolina)
Annandale (Botetourt County, Virginia)
Anson Davis House (Franklin County, Ohio)
Anson Grange #88 (Somerset County, Maine)
Antietam National Battlefield (Washington County, Maryland)
Antioch Christian Church (Allendale County, South Carolina)
Antrim (Carroll County, Maryland)
Apalachee School (Morgan County, Georgia)
Arcade, The (Providence County, Rhode Island)
Arcadia Plantation (Georgetown County, South Carolina)
Arch Street Opera House (Philadelphia County, Pennsylvania)
Archibald Taylor Plantation House (Granville County, North Carolina)
Archibald Woods House (Mercer County, Kentucky)
Arendt Jensen Jr., House (Douglas County, Nevada)
Arizona State Capitol Building (Maricopa County, Arizona)
Arlington Forest Historic District (Arlington County, Virginia)
Armed Forces Retirement Home--Washington (Washington, District of Columbia)
Armstrong House (Jackson County, West Virginia)
Armstrong Manual Training School (Washington, District of Columbia)
Aroostook County Courthouse and Jail (Aroostook County, Maine)
Arsenal Hill (Richland County, South Carolina)
Arthurdale Historic District (Preston County, West Virginia)
Ash Lawn-Highland (Albemarle County, Virginia)
Asher Brand Residence (Franklin County, Ohio)
Ashland (Bertie County, North Carolina)
Ashuelot Covered Bridge (Cheshire County, New Hampshire)
Covered bridge over Ashuelot River on Gunn Mountain Road in Winchester
Ashville Historic District (St. Clair County, Alabama)
Aspen Lawn (Southampton County, Virginia)
Aston Building (Collin County, Texas)
Atlanta Historic District (Elmore County, Idaho)
Atlantic City Mercantile (Fremont County, Wyoming)
Atlas Theatre (Laramie County, Wyoming)
Attica Downtown Historic District (Fountain County, Indiana)
August Baron House (Bastrop County, Texas)
August Bepler House (Hamilton County, Ohio)
Augusta Apartment Building (Washington, District of Columbia)
Augusta County Training School (Augusta County, Virginia)
Augustus Garland House (Pulaski County, Arkansas)
Augustus J. Oakes House (Yazoo County, Mississippi)
Aunty Green Hotel (Van Buren County, Iowa)
Aurora City Hall (Dearborn County, Indiana)
Autrey House (Lincoln Parish, Louisiana)
Averitt--Winchester House (Leon County, Florida)
Avondale Park Historic District (Jefferson County, Alabama)
Axil Johnson House (Baldwin County, Alabama)
Ayden Historic District (Pitt County, North Carolina)
Ayer, Caleb R., House (York County, Maine)
B. C. Calvert House (Boone County, Kentucky)
B. M. Allen House (Boone County, Kentucky)
B. W. Canady House (Lenoir County, North Carolina)
Bacas House (St. John the Baptist Parish, Louisiana)
Badin-Roque House (Natchitoches Parish, Louisiana)
Bahr Mill Complex (Berks County, Pennsylvania)
Bailey Covered Bridge (Washington County, Pennsylvania)
Baird-Welch House (Marshall County, Tennessee)
Baker Presbyterian Church (East Baton Rouge Parish, Louisiana)
Baker-Strickler House (Louisa County, Virginia)
Baldpate Inn (Larimer County, Colorado)
Baldwin Hotel (Klamath County, Oregon)
Baldwin's Mill (Chatham County, North Carolina)
Balfour--Gutherie Building (Multnomah County, Oregon)
Ballard--Marshall House (Orange County, Virginia)
Balsam Mountain Inn (Jackson County, North Carolina)
Balthis House (Warren County, Virginia)
Baltimore Equitable Society (Baltimore, Maryland)
Bamma Vickers Lawson House (Indian River County, Florida)
Bank of Kingston (Madison County, Arkansas)
Bank Street Historic District (Morgan County, Alabama)
Baptist Chapel Church and Cemetery (Ashe County, North Carolina)
Baptist Parsonage (Lenoir County, North Carolina)
Barberville Central High School (Volusia County, Florida)
Bardstown Historic District (Nelson County, Kentucky)
Bare Hills House (Baltimore County, Maryland)
Barkhurst Mill Covered Bridge (Morgan County, Ohio)
Covered bridge over West Branch Wolf Creek on Marion Road (TR 21)
Barlow Baxter House (Monroe County, Kentucky)
Barnes-Hooks Farm (Wayne County, North Carolina)
Barnett House (Montgomery County, Virginia)
Barr's Subdivision Historic District (Mobile County, Alabama)
Bass--Morrell House (Giles County, Tennessee)
Bastrop Commercial District (Bastrop County, Texas)
Bates House (Trimble County, Kentucky)
Batesville East Main Historic District (Independence County, Arkansas)
Batesville Historic District (Panola County, Mississippi)
Bath School (Beaufort County, North Carolina)
Bazle Edmiston House (Hopkins County, Kentucky)
Bazore Mill (Pickaway County, Ohio)
Beach Station (Chesterfield County, Virginia)
Beattystown (Warren County, New Jersey)
Bedford County Jail (Bedford County, Tennessee)
Bedford House (Taylor County, Iowa)
Beechdale Bridge (Somerset County, Pennsylvania)
Burr arch-truss bridge over Buffalo Creek on T548, Burkholder Bridge Road
Beersheba Springs Historic District (Grundy County, Tennessee)
Belfast Railroad Depot (Marshall County, Tennessee)
Belgrade and St. David's Church (Washington County, North Carolina)
Bell County Courthouse (Bell County, Texas)
Bell Hill Meetinghouse (Oxford County, Maine)
Bell Telephone Exchange Building (Philadelphia County, Pennsylvania)
Bell-Sherrod House (Halifax County, North Carolina)
Belle-Hampton (Pulaski County, Virginia)
Bellemonte (Nash County, North Carolina)
Bellevue Rural Historic District (Bedford County, Virginia)
Belton Depot (Anderson County, South Carolina)
Former railroad depot once saw 85 trains daily.
Beltzhoover Elementary School (Allegheny County, Pennsylvania)
Belvidere Historic District (Perquimans County, North Carolina)
Belvin Street Historic District (Hays County, Texas)
Ben-Wiley Hotel (Wake County, North Carolina)
Benjamin Banneker School (Platte County, Missouri)
Benjamin H. Averiett House (Talladega County, Alabama)
Benjamin Holmes House (Salem County, New Jersey)
Benjamin Passmore Hotel (Mercer County, Kentucky)
Benjamin Schenck Mansion (Switzerland County, Indiana)
Benjamin W. Best House (Greene County, North Carolina)
Bennett Hiatt Log House (Rockcastle County, Kentucky)
Bentivar (Albemarle County, Virginia)
Bergan, W.N.--J.C. Lauber Co. Building (St. Joseph County, Indiana)
Berlin Historic District (Marshall County, Tennessee)
Bertolini Block (Salt Lake County, Utah)
Besancon St. Louis Historic District (Allen County, Indiana)
Beth Elon (Henrico County, Virginia)
Beth Salem Presbyterian Church (McMinn County, Tennessee)
Bethany Memorial Chapel (Latah County, Idaho)
Bethany Presbyterian Church Complex (Giles County, Tennessee)
Bethlehem Baptist Church (Barnwell County, South Carolina)
Historic church in Barnwell, SC
Bettis Academy and Junior College (Edgefield County, South Carolina)
Historic school for the education of African-American children near Trenton, SC
Beulah Lodge (Hopkins County, Kentucky)
Biddle House (New Castle County, Delaware)
Big Bend Rural School (Crawford County, Missouri)
Big John Hart House (Yazoo County, Mississippi)