Built during 1880s

1800's Mexican Consulate (El Paso County, Texas)
19th Street Bridge (Denver County, Colorado)
Two-span wrought-iron through truss bridge over South Platte River on 19th Street in Denver
221-223 N. Second Street (Buchanan County, Missouri)
This two story red brick building is located at 221-223 N. Second Street
75th Police Precinct Station House (Kings County, New York)
7th District Police Station (Cook County, Illinois)
A. B. Hess Cigar Factory, and Warehouses (Lancaster County, Pennsylvania)
A. E. Burckhardt House (Hamilton County, Ohio)
A. E. Taylor House (Rock County, Wisconsin)
A. H. Allyn House (Walworth County, Wisconsin)
A. H. Bishop House (Columbia County, Washington)
A. J. Angell House (Leavenworth County, Kansas)
A. J. Gibson House (Missoula County, Montana)
A. J. Harwi House (Atchison County, Kansas)
A. J. Hinds House (Santa Cruz County, California)
A. J. Holman and Company (Philadelphia County, Pennsylvania)
A. J. Miller House (Augusta County, Virginia)
A. J. Smith House (White County, Arkansas)
A. M. Detmer House (Hamilton County, Ohio)
A. S. Rugge House (Warren County, New York)
A. T. Averill House (Linn County, Iowa)
A. V. Quinn House (Uinta County, Wyoming)
A. W. Buck House (Cambria County, Pennsylvania)
A. W. Hawnen House (Williamson County, Texas)
A. W. Pratt House (Johnson County, Iowa)
A.J. Borden Building (Bristol County, Massachusetts)
A.S. Cooper Farm (Ashe County, North Carolina)
Aaron G. Cloud House (Hamilton County, Illinois)
Aaron James Eaton House (Weld County, Colorado)
Abbey, The--Joaquin Miller House (Alameda County, California)
Abbot Row (Milwaukee County, Wisconsin)
Row houses converted to condominiums, not open to the public
Abbot, Edwin, House (Middlesex County, Massachusetts)
Abel Bennett Tract Historic District (Broome County, New York)
Abel Hyatt House (Swain County, North Carolina)
Abenaki Indian Shop and Camp (Carroll County, New Hampshire)
Aberdeen Historic District (Brown County, South Dakota)
Abernathy Furniture Company Factory (Leavenworth County, Kansas)
Abijah C. Jay House (Grant County, Indiana)
Abilene Historic District #1 (Dickinson County, Kansas)
Abita Springs Pavilion (St. Tammany Parish, Louisiana)
Abraham Bisson House (Scott County, Minnesota)
Abraham Hall (Prince George's County, Maryland)
Abraham Hegdahl Farm (Lake County, South Dakota)
Abram Huston House and Carriage House (Chester County, Pennsylvania)
Abrams Building (Albany County, New York)
Academy of the Sacred Heart (Wayne County, Michigan)
Academy Theater (Crawford County, Pennsylvania)
Acadia Ranch (Pinal County, Arizona)
Ackins House (White County, Arkansas)
Adair County Courthouse (Adair County, Kentucky)
Adam Brown Block (Monroe County, New York)
Adam C. Arnold Block (Calhoun County, Michigan)
Adam Catlin House (Cowlitz County, Washington)
Adam Clarke Nutt Mansion (Fayette County, Pennsylvania)
Adam J. Stoll House (Erie County, Ohio)
Adam Orris House (Cumberland County, Pennsylvania)
Adam, J.N.--AM&A Historic District (Erie County, New York)
Adams Building (Norfolk County, Massachusetts)
Adams Odd Fellows Hall (Umatilla County, Oregon)
Adams School (Hancock County, Ohio)
Adams, Amos, House (Middlesex County, Massachusetts)
Adams-Higgins House (Clay County, Iowa)
Addison Salyer House (Johnson County, Kentucky)
Adel Bridge (Dallas County, Iowa)
1882 King Bridge Company, Two-span, through truss bridge over North Raccoon River in Adel
Adgate Block (Allen County, Ohio)
Adirondack Forest Preserve (Unspecified county, New York)
Adolf Muench House (Ramsey County, Minnesota)
Adolph Block (Marion County, Oregon)
Adolph Zang Mansion (Denver County, Colorado)
Agnes Horton House (Boone County, Kentucky)
Agnes V. Krebs House (Jackson County, Mississippi)
Ahavas Shalom Reform Temple (Noble County, Indiana)
Ahern, Catherine, Three-Decker (Worcester County, Massachusetts)
Ahimaaz King House (Warren County, Ohio)
Aiken County Judicial Center (Aiken County, South Carolina)
County Courthouse in Aiken, SC
Aiken Street Bridge (Middlesex County, Massachusetts)
Aiken Winter Colony Historic District I (Aiken County, South Carolina)
Aiken Winter Colony Historic District II (Aiken County, South Carolina)
Aiken Winter Colony Historic District III (Aiken County, South Carolina)
Ainsworth House (Washakie County, Wyoming)
Alameda-Depot Historic District (Dona Ana County, New Mexico)
Alamo Ranchhouse (Washoe County, Nevada)
Albany City Hall (Albany County, New York)
Albert and Letha Green House and Barn (Clark County, Washington)
Albert DeHeck House (Lake County, Ohio)
Albert H. Kelly House (Salt Lake County, Utah)
Albert H. Sears House (Kendall County, Illinois)
Albert Kiene House (Scott County, Iowa)
Albert McCoy Farm (Mecklenburg County, North Carolina)
Albert Neukom House (Lucas County, Ohio)
Albert S. Piper Homestead Claim Shanty (Beadle County, South Dakota)
Albert W. Ferguson House (Clatsop County, Oregon)
Alberta Mill Complex (Orange County, North Carolina)
Albin Johnson Log House (Price County, Wisconsin)
Albion Carpet Mill (Philadelphia County, Pennsylvania)
Albion Methodist Church (Cassia County, Idaho)
Alcazar Hotel (St. Johns County, Florida)
Alden, William E., House (Worcester County, Massachusetts)
Alderbrook Farmhouse (San Juan County, Washington)
Alert--Hatcher Building (Sierra County, New Mexico)
Alexander Boyter House (Beaver County, Utah)
Alexander Chapoton House (Wayne County, Michigan)
Alexander Davis House (Franklin County, Ohio)
Alexander Doak Hall Farm (Sullivan County, Tennessee)
Alexander Graham Bell Laboratory (Washington, District of Columbia)
Alexander McClew Farm House (Genesee County, Michigan)
Alexander McVeight Miller House (Greenbrier County, West Virginia)
Alfonso McKibben House (Bracken County, Kentucky)
Alfred Ayer House (Marion County, Florida)
Alfred Budge House (Bear Lake County, Idaho)
Alfred H. Cohen House (Alameda County, California)
Alfred Hirt House (Putnam County, Indiana)
Alfred Horatio Belo House (Dallas County, Texas)
Alfred Johnson Farm (Johnson County, Tennessee)
Alfred L. Hudson House (Kent County, Delaware)
Alfred Lindorff House (Summit County, Utah)
Alfred P. Fletcher Farmhouse (Yamhill County, Oregon)
Alfred Rowland House (Robeson County, North Carolina)
Aline Covered Bridge (Snyder County, Pennsylvania)
Covered bridge over North Branch Mahantango Creek in Meiserville
All Saint's Episcopal Church (Volusia County, Florida)
All Saints Church at Monie (Somerset County, Maryland)
All Saints Episcopal Church (Calcasieu Parish, Louisiana)
All Saints Historic District (Minnehaha County, South Dakota)
All Saints School Main Building (Minnehaha County, South Dakota)
All Saints' Episcopal Church (Barnes County, North Dakota)
Allegheny County Courthouse and Jail (Allegheny County, Pennsylvania)
Allemarinda and James Wyer House (Hennepin County, Minnesota)
Allen Beaumont J., House (Pueblo County, Colorado)
Allen Chapel A.M.E. Church (Rutherford County, Tennessee)
Allen County Courthouse (Allen County, Ohio)
Allen House (Baldwin County, Alabama)
Allen School (Bureau County, Illinois)
Allison--Reinkeh House (Ravalli County, Montana)
Almon Asbury Lieuallen House (Latah County, Idaho)
Alonzo T. Prentice House (Kalamazoo County, Michigan)
Alpha Terrace Historic District (Allegheny County, Pennsylvania)
Alphonse Gaulin Jr., House (Providence County, Rhode Island)
Alvis Powers House (Carter County, Missouri)
Amanda Blake Store (Atlantic County, New Jersey)
Amazeen House (Aroostook County, Maine)
Ambrose Hall (Scott County, Iowa)
Ambrose-Ward Mansion (Essex County, New Jersey)
Amelia Barr House (Orange County, New York)
Amelia S. Givin Free Library (Cumberland County, Pennsylvania)
American Brewery (Baltimore, Maryland)
American League Birthplace (Milwaukee County, Wisconsin)
Birthplace of the American League
American River Grange Hall No. 172 (Sacramento County, California)
Ames Building (Suffolk County, Massachusetts)
Ames Monument (Albany County, Wyoming)
Ames, Josiah A., House (Barnstable County, Massachusetts)
Amherst Town Hall (Lorain County, Ohio)
Ammendale Normal Institute (Prince George's County, Maryland)
Amos B. Coe House (Hennepin County, Minnesota)
Amos H. Root Building (Denver County, Colorado)
Amos Hulme Barn (Bear Lake County, Idaho)
Anaconda Commercial Historic District (Deer Lodge County, Montana)
Anamosa/Wapsipinicon State Park Bridge (Jones County, Iowa)
Single span, pin-connected Pratt through truss spanning the Wapsipinicon River
Ancil Twitchell House (Beaver County, Utah)
Anclote Key Lighthouse (Pinellas County, Florida)
Anderson Barn (Beadle County, South Dakota)
Anderson Chapel (Garrett County, Maryland)
Anderson--Clark Farmstead (Tooele County, Utah)
Anderson-Doosing Farm (Roanoke County, Virginia)
Andre Building (Maricopa County, Arizona)
Andreas Graf House (Multnomah County, Oregon)
Andrew McNally House (Los Angeles County, California)
Andrew Nilsson House (Columbia County, Washington)
Andrew R. McGill House (Ramsey County, Minnesota)
Andrew Ritter Farm (Campbell County, Kentucky)
Andrew T. Gilbert House (Marion County, Oregon)
Andrews Memorial Chapel (Pinellas County, Florida)
Andronico Lorona Second House (Pinal County, Arizona)
Angelo Marre House (Pulaski County, Arkansas)
Anglecot, The (Philadelphia County, Pennsylvania)
Anheuser-Busch Beer Depot (Douglas County, Nebraska)
Ann Arbor Central Fire Station (Washtenaw County, Michigan)
Ann Arbor Railway Station (Livingston County, Michigan)
Ann Halsted House (Cook County, Illinois)
Ann River Logging Company Farm (Kanabec County, Minnesota)
Anna Town Hall (Shelby County, Ohio)
Annex, The (Pike County, Mississippi)
Anniston Cotton Manufacturing Company (Calhoun County, Alabama)
Anniston Inn Kitchen (Calhoun County, Alabama)
Anniston Transfer Company (Calhoun County, Alabama)
Antelope Stage Station (Yellowstone County, Montana)
Anthony Burdick House (Scott County, Iowa)
Anthony Wayne Cook Mansion (Forest County, Pennsylvania)
Antwerp Norfolk and Western Depot (Paulding County, Ohio)