303 Saluda Avenue (Richland County, South Carolina)
A. A. Bancroft House (Licking County, Ohio)
A. C. Jones House (Lexington County, South Carolina)
A. Fletcher Spigner House (Richland County, South Carolina)
A. G. Grant Homestead (Franklin County, Ohio)
A. H. Allyn House (Walworth County, Wisconsin)
A. H. Halff House (Bexar County, Texas)
A. J. Fisher House (Blount County, Tennessee)
A. J. Hazeltine House (Warren County, Pennsylvania)
A. Jackson Crawford Building (Pulaski County, Kentucky)
A. M. McNair House (Darlington County, South Carolina)
A. S. Rugge House (Warren County, New York)
A. T. Averill House (Linn County, Iowa)
A. W. Gridley House (Kane County, Illinois)
Frank Lloyd Wright designed house, now a private residence.
A. W. Patterson House (Muskogee County, Oklahoma)
A. W. Pratt House (Johnson County, Iowa)
A.B. Graham House (Franklin County, Ohio)
A.B. Hunter Home (New Madrid County, Missouri)
Mansion built by A.B. Hunter, Sr.
A.B. Ming House (Yuma County, Arizona)
A.P. Williams Funeral Home (Richland County, South Carolina)
A.P. Woodson and Leigh Yawkey Woodson House (Marathon County, Wisconsin)
Prairie School of Design mansion built in 1914, now serving the Marathon County Historical Society
Aaron Copland House (Westchester County, New York)
Aaron Kinney House (Scioto County, Ohio)
Aaron Neely Sr., Mansion (King County, Washington)
Abbot Row (Milwaukee County, Wisconsin)
Row houses converted to condominiums, not open to the public
Abbott-Page House (Erie County, Ohio)
Abel and Mary Nicholson House (Salem County, New Jersey)
Abel Colley Tavern (Fayette County, Pennsylvania)
Once a tavern along the National Road
Abell-Kilbourn House (Berkeley County, West Virginia)
Abner L. Harris House (Sauk County, Wisconsin)
French Second Empire House with Mansard Roof Disguising a Third Story
Abraham Byrd House (Cape Girardeau County, Missouri)
Abraham Curry House (Carson City, Nevada)
Abraham Groesbeck House (Cook County, Illinois)
Abraham H. Esbenshade House (Milwaukee County, Wisconsin)
Two story, red brick late Queen Anne house with Renaissance Revival features
Abraham Lehman Farmhouse (Franklin County, Ohio)
Abraham Russell Ponder House (Cape Girardeau County, Missouri)
Abram Ackerman House (Bergen County, New Jersey)
Abram Hatch House (Wasatch County, Utah)
Acadian House (New Haven County, Connecticut)
Achmester (New Castle County, Delaware)
Acoma (Valencia County, New Mexico)
Acton House (Preble County, Ohio)
Adah Robinson House (Tulsa County, Oklahoma)
Adam and Mary Smith House (Dane County, Wisconsin)
Brick, Italianate style home built by a prominent citizen
Adam Ivy House (Lancaster County, South Carolina)
Adam Stephen House (Berkeley County, West Virginia)
Adar House (Benton County, Arkansas)
Addison B. Colvin House (Warren County, New York)
Adolph J. Zang House (Denver County, Colorado)
Adolphus Sterne House (Nacogdoches County, Texas)
Adsmore (Caldwell County, Kentucky)
Agler-La Follette House (Franklin County, Ohio)
Agnes Horton House (Boone County, Kentucky)
Ahimaaz King House (Warren County, Ohio)
Ahira R. Hinkley House (Waukesha County, Wisconsin)
Ainsley Hall House (Richland County, South Carolina)
Ainsworth E. Blunt House (Whitfield County, Georgia)
Airlie (Adams County, Mississippi)
Alanson M. Kimball House (Waushara County, Wisconsin)
Campus of mid 19th Century buildings centered on a 2-1/2 story frame residence
Alanson Pomeroy House (Cuyahoga County, Ohio)
Albert and Edith Adelman House (Milwaukee County, Wisconsin)
Frank Lloyd Wright Prairie Home in Fox Point
Albert and Theresa Marx House (Monroe County, Wisconsin)
Two and one-half story, Queen Anne style house
Albert E. and Emily Wilson House (Westchester County, New York)
Albert F. Madlener House (Cook County, Illinois)
Albert Kahn House (Wayne County, Michigan)
Albert R. Baer House (Waukesha County, Wisconsin)
Albert R. Beardsley House (Elkhart County, Indiana)
Albert S. Potter House (Washington County, Rhode Island)
Octagon house built by watchmaker Albert S. Potter in 1857.
Albert Swain Bryson House (Macon County, North Carolina)
Albin Polasek House and Studio (Orange County, Florida)
Albion (Fairfield County, South Carolina)
19th Century plantation home near Winnsboro, SC
Albon Chase House (Clarke County, Georgia)
Albrecht C. Ringling House (Sauk County, Wisconsin)
Albright-Dukes House (Laurens County, South Carolina)
Alden and Thomasene Howell House (Haywood County, North Carolina)
Alden House (Benton County, Arkansas)
Alden, Ebenezer, House (Knox County, Maine)
Aldridge H. Vann House (Franklin County, North Carolina)
Alex Cole Cabin (Sevier County, Tennessee)
Alexander Bagby House (Boyd County, Kentucky)
Alexander Brown House (Onondaga County, New York)
Alexander Campbell Mansion (Brooke County, West Virginia)
Alexander Clark House (Muscatine County, Iowa)
Alexander Cook House (Waukesha County, Wisconsin)
Gothic Revival, 1865 house of ashlar stone
Alexander H. McMicken House (Milwaukee County, Wisconsin)
One of the best preserved Craftsman style homes in West Allis.
Alexander Hamil Hosue (Blount County, Tennessee)
Alexander House (Spartanburg County, South Carolina)
Historic home in Spartanburg, SC
Alexander Kelly House (Moore County, North Carolina)
Alexander Majors House (Jackson County, Missouri)
Alexander Montgomery house (Hardin County, Kentucky)
Alexander Ramsey House (Ramsey County, Minnesota)
Alexander W. Livingston House (Franklin County, Ohio)
Alexander Wade House (Monongalia County, West Virginia)
Alexander-Cannon-Hill House (Oconee County, South Carolina)
Alexander-Cleveland House (Elbert County, Georgia)
Alfred and Olive Thorpe Lustron House (Broward County, Florida)
Alfred Butters House (Denver County, Colorado)
Alfred C. Clas House (Milwaukee County, Wisconsin)
Alfred Clas' retirement home, built with style and whimsey
Alfred Dockery House (Richmond County, North Carolina)
Alfred Dunk House (Broome County, New York)
Alfred Hanson House (Fayette County, Iowa)
Alfred Lester Slocum House (Milwaukee County, Wisconsin)
Tudor Revival House
Alfred M. Glossbrenner Mansion (Marion County, Indiana)
Alfred Rowland House (Robeson County, North Carolina)
Alfred W. Morrison House (Howard County, Missouri)
Alfred W. Roberts House (Cherokee County, Georgia)
Alfrey-Brown House (Benton County, Arkansas)
Aline Barnsdall Complex (Los Angeles County, California)
Alkire House (Franklin County, Ohio)
Allen Dial House (Laurens County, South Carolina)
Allen House (Alamance County, North Carolina)
Allen House (Dubuque County, Iowa)
Allen, Candace, House (Providence County, Rhode Island)
Allen-Alexander House (Bourbon County, Kentucky)
Alley-Carlson House (Marion County, Texas)
Allison Mansion (Marion County, Indiana)
Allison Plantation (York County, South Carolina)
Allison Woods (Iredell County, North Carolina)
Alston House (Moore County, North Carolina)
Alston House (Richland County, South Carolina)
Altona (Jefferson County, West Virginia)
Alvey Cox House (Hart County, Kentucky)
Alvin Miller House (Floyd County, Iowa)
A Frank Lloyd Wright designed Usonian home constructed in 1946. It is located on the west bank of the Cedar River, severely damaged and nearly destroyed in the floods of 2008.
Alvin T. Smith House (Washington County, Oregon)
Ames, Winslow, House (New London County, Connecticut)
Ammadelle (Lafayette County, Mississippi)
Amos Cook House (Yamhill County, Oregon)
Amos Shinkle Summer Residence (Kenton County, Kentucky)
Amoureux House (Ste. Genevieve County, Missouri)
Amstel House (New Castle County, Delaware)
Andalusia (Bucks County, Pennsylvania)
Anderson Country Club (Anderson County, South Carolina)
Historic antebellum plantation home, now utilized as a golf course
Anderson House (York County, South Carolina)
Anderson, Major Edward, House (Cumberland County, Maine)
Anderson--Thompson House (Marion County, Indiana)
Anderson-Shaffer House (Butler County, Ohio)
Anderson-Smith House (McCracken County, Kentucky)
Restored Civil War Era mansion now serving as a welcome center/rest area
Andrew Carnegie Mansion (New York County, New York)
Andrew Carpenter House (Gaston County, North Carolina)
Andrew Ellicott House (Lancaster County, Pennsylvania)
Andrew Frame House (Waukesha County, Wisconsin)
Andrew J. Landrum House (Santa Clara County, California)
Andrew James Wardlaw House (Warren County, Kentucky)
Andrew John Volstead House (Yellow Medicine County, Minnesota)
Andrew Lovelace Jr., House (Ballard County, Kentucky)
Andrew Thomas House (Carroll County, Indiana)
Andrew-Ryan House (Dubuque County, Iowa)
Andrews, Lt. Robert, House (Cumberland County, Maine)
Andrews-Duncan House (Wake County, North Carolina)
Angelo Marre House (Pulaski County, Arkansas)
Angles, The (McCracken County, Kentucky)
Anna Jarvis House (Taylor County, West Virginia)
Annandale Plantation (Georgetown County, South Carolina)
Annefield (Charlotte County, Virginia)
Annesdale (Shelby County, Tennessee)
Ansel T. Walling House (Pickaway County, Ohio)
Anson Davis House (Franklin County, Ohio)
Anthony and Caroline Isermann House (Kenosha County, Wisconsin)
Anthony Wayne Cook Mansion (Forest County, Pennsylvania)
Antietam National Battlefield (Washington County, Maryland)
Anza House (San Benito County, California)
Appin (Marlboro County, South Carolina)
Appleton, Nathan, Residence (Suffolk County, Massachusetts)
Arcadia Plantation (Georgetown County, South Carolina)
Archambault House (St. Louis County, Missouri)
Archibald Henderson Law Office (Rowan County, North Carolina)
Archibald M. Kennedy House (Rush County, Indiana)
Archibald McAllister House (Dauphin County, Pennsylvania)
Archibald Smith House (Fulton County, Georgia)
Archibald Woods House (Mercer County, Kentucky)
Arden, Elizabeth, Estate (Kennebec County, Maine)
Arendt--Seymour House (Franklin County, Ohio)
Arlington (Adams County, Mississippi)
Arlington (Madison County, Kentucky)
Arlington House, The Robert E. Lee Memorial (Arlington County, Virginia)
Armistead Burt House (Abbeville County, South Carolina)
Armour-Stiner House (Westchester County, New York)
Armsmear (Hartford County, Connecticut)
Armstrong Row (Mason County, Kentucky)
Arnold-Palmer House (Providence County, Rhode Island)
Arnoldus Brumby House (Cobb County, Georgia)
Arnoldus Vander Horst House (Charleston County, South Carolina)
Art Association of Harrisburg (Dauphin County, Pennsylvania)
Arthur Barnwell House (Greenville County, South Carolina)
Historic home on the NRHP that was located in Pelham, SC, but has now been moved to another location
Arthur C. and Leonora M. Votteler Managold House (Milwaukee County, Wisconsin)
One of two Eschweiler homes designed for the south side of Milwaukee
Arthur Goodson House (Darlington County, South Carolina)
Arthur Hillyer Ford House (Johnson County, Iowa)
Arthur M. Burroughs House (Horry County, South Carolina)
Arthur M. Parker House (Wayne County, Michigan)
Arts Club of Washington (Washington, District of Columbia)
Artz House (Franklin County, Ohio)
Asa Biggs House and Site (Martin County, North Carolina)
Asbury and Sallie Hodgson House (Rabun County, Georgia)
Asbury House (Putnam County, West Virginia)
Ash Lawn-Highland (Albemarle County, Virginia)
Asher Brand Residence (Franklin County, Ohio)