Built 1855

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Aaron Swayzee House (Grant County, Indiana)
Abernathy Farm (Giles County, Tennessee)
Abner T. Shaw House (Davidson County, Tennessee)
Abraham Wiley Hill House (Bastrop County, Texas)
Academy of Music (Philadelphia County, Pennsylvania)
Adrian Engine House No. 1 (Lenawee County, Michigan)
Albania Plantation House (St. Mary Parish, Louisiana)
Alfred Drowne Road Historic District (Bristol County, Rhode Island)
Allentown Mill (Monmouth County, New Jersey)
Allison-Robinson House (Owen County, Indiana)
Andrew McCoy House (Barren County, Kentucky)
Antoine LeClaire House (Scott County, Iowa)
Arbor Lodge (Otoe County, Nebraska)
Arch Street Presbyterian Church (Philadelphia County, Pennsylvania)
Armsmear (Hartford County, Connecticut)
Ash Hollow Historic District (Garden County, Nebraska)
Ashland Mill Tenement (Worcester County, Massachusetts)
Ashland Town House (Middlesex County, Massachusetts)
Auburn (Culpeper County, Virginia)
Baker Island Light Station (Hancock County, Maine)
Baltimore County Courthouse (Baltimore County, Maryland)
Barker, Richard, Octagon House (Worcester County, Massachusetts)
Bartsch--Jasper House (Franklin County, Missouri)
Batavia Gas Light Co. Gasholder (Genesee County, New York)
Smaller of two gasometers once at this site, now restored.
Baxter, Capt. Sylvester, House (Barnstable County, Massachusetts)
Beaty-Little House (Horry County, South Carolina)
Historic home in Conway, SC
Bemis, Elbridge G., House (Cheshire County, New Hampshire)
Benjamin Brunson House (Ramsey County, Minnesota)
Bethany Presbyterian Church (Amite County, Mississippi)
Bethel Church (Louisa County, Iowa)
Big Hill Farmstead Historic District (Cape Girardeau County, Missouri)
Big Rockfish Presbyterian Church (Cumberland County, North Carolina)
Bingham-Waggoner House and Estate (Jackson County, Missouri)
Blanchard, Capt. Silvanus C., House (Cumberland County, Maine)
Boon Island Light Station (York County, Maine)
Borodino District School #8 (Onondaga County, New York)
Bottum Farm (Addison County, Vermont)
Bradley-Latimer Summer House (New Hanover County, North Carolina)
Branner-Hicks House (Jefferson County, Tennessee)
Brigham Hall (Ontario County, New York)
Brigham Young Complex (Salt Lake County, Utah)
Bristol Ferry Lighthouse (Bristol County, Rhode Island)
Brooklyn Tobacco Factory (Halifax County, Virginia)
Brownville Historic District (Nemaha County, Nebraska)
Bruce--Briggs Brick Block (Erie County, New York)
Burleson-Knispel House (Hays County, Texas)
Burnawood (Madison County, Kentucky)
Call-Bartlett House (Middlesex County, Massachusetts)
Calvary Baptist Church (Cape May County, New Jersey)
Camp Ground Church and Cemetary (Sullivan County, Missouri)
Capt. George Scott House (Lincoln County, Maine)
Carlos Avery House (Lorain County, Ohio)
Caryswood (Campbell County, Virginia)
Catlett Historic District (Fauquier County, Virginia)
Cedarburg Mill (Ozaukee County, Wisconsin)
Center School (Middlesex County, Massachusetts)
Central Building, State Lunatic Asylum (Baldwin County, Georgia)
Chapel on the Green (Kendall County, Illinois)
Oldest church building in Kendall County.
Chapin, A., House (Worcester County, Massachusetts)
Charles Brearley House (Mercer County, New Jersey)
Charles Payne House (Providence County, Rhode Island)
Chennault House (Lincoln County, Georgia)
Chicago Burlington & Quincy Ry Roundhouse and Locomotive Shop (Kane County, Illinois)
Restored CB&Q roundhouse, now a restaurant and Metra transportation center.
China Grove Plantation (Adams County, Mississippi)
Christ Episcopal Church (Lorain County, Ohio)
Church of the Advent, Episcopal (Harrison County, Kentucky)
Church of the Nazarene (Essex County, New York)
Clark County Courthouse (Clark County, Kentucky)
Claude Vautrin House (Jefferson County, New York)
Clayton Railroad Station (Kent County, Delaware)
Clinton Grove Cemetery (Macomb County, Michigan)
Coal Village Site (Kenai Peninsula Borough, Alaska)
Coffin's Grove Stagecoach House (Delaware County, Iowa)
Col. John Harris House (Jackson County, Missouri)
College Block--Lisbon Block (Androscoggin County, Maine)
Colonel John Gotea Pressley House (Williamsburg County, South Carolina)
Colt Industrial District (Hartford County, Connecticut)
Concord Square Historic District (Middlesex County, Massachusetts)
Congress Street (Hartford County, Connecticut)
Constitution Hall--Topeka (Shawnee County, Kansas)
Convent and Academy of the Visitation (Mobile County, Alabama)
Conway Cemetery (Lafayette County, Arkansas)
Cumberland Valley Car (Lancaster County, Pennsylvania)
Cyrus Davis Farmstead (Waukesha County, Wisconsin)
Damascus Baptist Church Arbor (Iredell County, North Carolina)
Daniel Gibb & Co. Warehouse (San Francisco County, California)
David Hanaford Farmstead (Wright County, Minnesota)
David Keith House (St. Louis County, Missouri)
Deveaux School Historic District (Niagara County, New York)
Downtown Corinth Historic District (Alcorn County, Mississippi)
Downtown Elkin Historic District (Surry County, North Carolina)
Dr. Buck-Stevens House (St. Lawrence County, New York)
Dr. George M. Willing House (Callaway County, Missouri)
Duncan House (Simpson County, Kentucky)
Durbin Hotel (Rush County, Indiana)
E.J. Caire & Co. Stores (St. John the Baptist Parish, Louisiana)
East Main Street Historic District (Fairfield County, Connecticut)
Echols Farm (Rockbridge County, Virginia)
Edward S. Kearney House (Middlesex County, New Jersey)
Edward Smith Jr., Farm (Fayette County, Ohio)
Elam Beardsley Farmhouse (Racine County, Wisconsin)
Mixed cobblestone and fieldstone house built in the Italianate Style
Elgin Academy (Kane County, Illinois)
Elk Mountain Mission Fort Site (Grand County, Utah)
Elmira College Old Campus (Chemung County, New York)
Episcopal Church of the Nativity (Union County, South Carolina)
Historic church in Union, SC
Erskine House No. 1 (Guadalupe County, Texas)
Ethan Flagg House--Blessed Sacrament Monastery (Westchester County, New York)
Evergreen Plantation (Grenada County, Mississippi)
Executive Mansion (Sangamon County, Illinois)
Fairhaven Plantation House (East Baton Rouge Parish, Louisiana)
Fairview Cemetery (Culpeper County, Virginia)
Fall Creek Stone Arch Bridge (Adams County, Illinois)
Stone arch bridge over Fall Creek just north of 223rd Lane (Payson Lane)
Farmers' High School (Centre County, Pennsylvania)
Faulkner House (Albemarle County, Virginia)
Fifth Ward School (Jefferson County, Kentucky)
First Baptist Church (Hardin County, Kentucky)
First Church Congregational (Essex County, Massachusetts)
First Presbyterian Church (Genesee County, New York)
First Presbyterian Church (Dearborn County, Indiana)
First Territorial Capitol (Geary County, Kansas)
First Unitarian Church Of Marietta (Washington County, Ohio)
First Ward Triangle Historic District (Milwaukee County, Wisconsin)
Southern end of the Gold Coast, featuring a statue of Robert Burns in the triangle
Fletcher Place Historic District (Marion County, Indiana)
Fort Lancaster (Crockett County, Texas)
Fort Stanton (Lincoln County, New Mexico)
Foster Botanic Garden (Honolulu County, Hawaii)
Frost Farm (Cheshire County, New Hampshire)
Gen. Isaac Peace Rodman House (Washington County, Rhode Island)
Gibson House (Mercer County, Pennsylvania)
Glendale Methodist Episcopal Church (Camden County, New Jersey)
Gov. Thomas G. Jones House (Montgomery County, Alabama)
Government Island Historic District (Norfolk County, Massachusetts)
Grace Episcopal Church (Dane County, Wisconsin)
Grafton Post Office (Windham County, Vermont)
Greyledge (Botetourt County, Virginia)
Griggsville Landing Lime Kiln (Pike County, Illinois)
H.D. Jameson House (Winnebago County, Illinois)
Hagel Family Farm (Hennepin County, Minnesota)
Halliburton House (Arkansas County, Arkansas)
Hamilton Family Estate (Philadelphia County, Pennsylvania)
Harris Farm (Frederick County, Maryland)
Harris Warehouse (Providence County, Rhode Island)
Haugh House (Rockingham County, Virginia)
Heart Prairie Lutheran Church (Walworth County, Wisconsin)
Heath, Charles, House (Norfolk County, Massachusetts)
Heathside Cottage (Allegheny County, Pennsylvania)
Henni Hall (Milwaukee County, Wisconsin)
Center of the campus of the St. Francis Seminary, the oldest seminary in continuous operation in the United States
Henry Avenue Historic District (St. Louis County, Missouri)
Henry S. Smith Octagon House (Middlesex County, Connecticut)
Hillside (Adams County, Mississippi)
Hite--Finney House (Morgan County, Indiana)
Hofheintz-Reissig Store (Travis County, Texas)
Holley-Rankine House (Niagara County, New York)
Homestead Plantation Complex (Iberville Parish, Louisiana)
House at 38--40 Webster Place (Norfolk County, Massachusetts)
Hubbard-Upson House (Sacramento County, California)
Hyde County Courthouse (Hyde County, North Carolina)
Imbrie Farm (Washington County, Oregon)
Imiola Church (Hawaii County, Hawaii)
Jabez Reeves Farmstead (Rush County, Indiana)
Jacob Voigt House (Ozaukee County, Wisconsin)
James and Anne Atmore Bryant Farmstead (Calhoun County, Michigan)
James B. Colt House (Hartford County, Connecticut)
James McGloin Homestead (San Patricio County, Texas)
James Mechlin Anderson House (Marion County, Oregon)
John A. Coate House (Clarke County, Alabama)
A historic house in Grove Hill, Alabama.
John A. Rowland House (Los Angeles County, California)
John B. Busch Brewery Historic District (Franklin County, Missouri)
John Brown Cabin (Miami County, Kansas)
John D. McIver Farm (Lee County, North Carolina)
John Dun Homestead (Franklin County, Ohio)
John Fiechter House (Benton County, Oregon)
John H. Barker Mansion (La Porte County, Indiana)
John H. Suiter House (Scott County, Iowa)
John Mercer Langston House (Lorain County, Ohio)
John S. Moffat House (St. Croix County, Wisconsin)
Gorgeous Victorian home built in the octagon mode, open to the public as a museum.
John Sterling Smith Jr., House (Washington County, Texas)
John Tilley House (Washington County, Arkansas)
Johnson-Hubbard House (Wilkes County, North Carolina)
Johnston-Hay House (Bibb County, Georgia)
Justin Smith Morrill Homestead (Orange County, Vermont)
Kennett Square Historic District (Chester County, Pennsylvania)
Killarney (Concordia Parish, Louisiana)
Kittrell-Dail House (Pitt County, North Carolina)
Knights Ferry (Stanislaus County, California)
Knox County Courthouse (Knox County, Ohio)
Kyle Ranch (Clark County, Nevada)
La Plata Square Historic District (Macon County, Missouri)
La Vista (Spotsylvania County, Virginia)
Landsberger--Gerhardt House (Rutherford County, Tennessee)
Langdon House (Hamilton County, Ohio)
Lappin-Hayes Block (Rock County, Wisconsin)