Built 1854

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Adriatic Mills (Worcester County, Massachusetts)
Allen House (Middlesex County, Massachusetts)
Amana Villages (Iowa County, Iowa)
American House (Clayton County, Iowa)
Ammi and William Wright House (Saginaw County, Michigan)
Anacostia Historic District (Washington, District of Columbia)
Andrew J. Stevens House (Kalamazoo County, Michigan)
Anna Jarvis House (Taylor County, West Virginia)
Appellate Court, 5th District (Jefferson County, Illinois)
Arnold-Rauch-Brandt Homestead (Comal County, Texas)
Badollet House (Marion County, Illinois)
Bank House (Kent County, Delaware)
Bank of Lucas, Turner & Company (San Francisco County, California)
Two story brick and granite bank built in 1854
Barry Historic District (Pike County, Illinois)
Bayne-Fowle House (Alexandria, Virginia)
Bement Covered Bridge (Merrimack County, New Hampshire)
Covered bridge over West Branch Brook on Bradford Center Road in Bradford
Bennett Plantation House (Rapides Parish, Louisiana)
Bethel A.M.E. Church (Wayne County, Indiana)
Bleak House (Knox County, Tennessee)
Bonnie Shade (Florence County, South Carolina)
Bonny Oaks (Hamilton County, Tennessee)
Boxwood (Talladega County, Alabama)
Bridge in Solebury Township (Bucks County, Pennsylvania)
Bridgeport City Hall (Fairfield County, Connecticut)
Browne Law Office (Waupaca County, Wisconsin)
Rectangular, one-story building with a gable roof
Brunswick County Courthouse Square (Brunswick County, Virginia)
Bryson Stage Coach Stop (Williamson County, Texas)
Burritt Blakslee House (Medina County, Ohio)
Bushrod Figg House (Shelby County, Kentucky)
C&A Williamsville Depot (Sangamon County, Illinois)
Preserved Chicago & Alton Railroad Station
Cade's Mill Covered Bridge - 14-23-02 (Fountain County, Indiana)
Crosses Coal Creak
Cambria Historic District (Montgomery County, Virginia)
Carl and Sedsel Questad Farm (Bosque County, Texas)
Central State Hospital Cemeteries (Baldwin County, Georgia)
Centreport Aqueduct (Cayuga County, New York)
Former Erie Canal aquaduct now the center of a popular local park
Charles Wenner House (Jo Daviess County, Illinois)
Church of the Madonna (Bergen County, New Jersey)
Clark-Taylor House (Utah County, Utah)
Clayton Historic District (Jefferson County, New York)
Clove Furnace (Orange County, New York)
Anthracite-fueled blast furnace now restored as a museum
Cokesbury Church (Accomack County, Virginia)
Col. John Dewberry House (Smith County, Texas)
Columbia Historic District (Tuolumne County, California)
Columbiana City Hall (Shelby County, Alabama)
A defunct courthouse in Columbiana, Alabama.
Comfort Historic District (Kendall County, Texas)
Common Street District (Mobile County, Alabama)
Community Building (Rowan County, North Carolina)
Cool Spring Presbyterian Church (Sussex County, Delaware)
Copcutt, John, Mansion (Westchester County, New York)
Corinthia (Fayette County, Kentucky)
Cottage Iron Furnace (Estill County, Kentucky)
Culbertson-Head Farmstead (Marion County, Missouri)
Daniel Hertzler House (Clark County, Ohio)
Daniel R. Bigelow House (Thurston County, Washington)
Decatur County Courthouse (Decatur County, Indiana)
Decatur Downtown Historic District (Macon County, Illinois)
Delavan Terrace Historic District (Westchester County, New York)
Denmark Presbyterian Church (Madison County, Tennessee)
Dexter Grist Mill (Penobscot County, Maine)
Dick-Kobel Homestead (Cooper County, Missouri)
Douglas Flat School (Calaveras County, California)
Downsville Covered Bridge 32-13-01 (Delaware County, New York)
Covered bridge over East Branch Delaware River on Bridge Street
Downtown Douglas Historic District (Coffee County, Georgia)
Dr. Abel House (Hardin County, Kentucky)
Dr. J.A. Hay House (Lewis County, Missouri)
Dr. William H. Pitts House (Washington County, Virginia)
Dreibelbis Mill (Berks County, Pennsylvania)
Dublin Historic District (Pulaski County, Virginia)
Duck Creek Aqueduct (Franklin County, Indiana)
Covered bridge carrying the Whitewater Canal over Duck Creek
Edgewood (Charles City County, Virginia)
El Zaguan (Santa Fe County, New Mexico)
Elm Park (Worcester County, Massachusetts)
One of the earliest public parks in the country.
Elmwood Cemetery (Richland County, South Carolina)
Eureka (Mecklenburg County, Virginia)
Everette-Gottig-Bilbo House (Pike County, Mississippi)
Evergreen Cemetery (Cumberland County, Maine)
Farrand Hall (St. Joseph County, Michigan)
Fayette School (Philadelphia County, Pennsylvania)
Fendall Hall (Barbour County, Alabama)
Fenno, John A., House (Middlesex County, Massachusetts)
Fess Hotel (Dane County, Wisconsin)
First Church of Jamaica Plain (Suffolk County, Massachusetts)
First Presbyterian Church (Richland County, South Carolina)
First Presbyterian Church (Bedford County, Tennessee)
First Presbyterian Church of Chester (Orange County, New York)
First United Methodist Church (Elmore County, Alabama)
Fletcher Chapel (Washington, District of Columbia)
Flint Hill Baptist Church (Rappahannock County, Virginia)
Forbes Mill Annex (Santa Clara County, California)
Fort Craig (Socorro County, New Mexico)
Fort Davis National Historic Site (Jeff Davis County, Texas)
Fort Harmony Site (Washington County, Utah)
Fort Tejon (Kern County, California)
Fox's Brewery-Diamond Wine Co. (Erie County, Ohio)
Francis Becker House (Summit County, Ohio)
Fred Rhoda House (Lewis County, Missouri)
Free Frank McWorter Grave Site (Pike County, Illinois)
Freeman Farm (Anderson County, Texas)
Fruitlands (Richmond County, Georgia)
Gallagher Mansion and Outbuilding (Baltimore, Maryland)
George H. Gharky House (Scioto County, Ohio)
Gerloff Road Bridge Crossing Swamp Creek (Montgomery County, Pennsylvania)
Pratt through truss bridge over Swamp Creek on Gerloff Road near Zieglersville, PA
Gildersleeve, Andrew, Octagonal Building (Suffolk County, New York)
Glen Oak (Davidson County, Tennessee)
Godfrey-Johnson House (Erie County, Ohio)
Gov. James T. Lewis House (Columbia County, Wisconsin)
Governor's Mansion (Travis County, Texas)
Grace Episcopal Church (Tioga County, New York)
Great Western Furnace (Stewart County, Tennessee)
Greenville (Culpeper County, Virginia)
Grey Columns (Macon County, Alabama)
Griffith-Franklin House (McLean County, Kentucky)
Grove Farm (Kauai County, Hawaii)
Gruenwald Convent (Mercer County, Ohio)
Guertler House (Madison County, Illinois)
Hagans Homestead (Preston County, West Virginia)
Hannah Morse Fowler Hall House (Cedar County, Iowa)
Harlan-Lincoln House (Henry County, Iowa)
Harriet Funk House (Jefferson County, Kentucky)
Hawkwood (Louisa County, Virginia)
Hawthorn House (Wilcox County, Alabama)
A historic plantation house in Pine Apple, Alabama.
Hebronville Mill Historic District (Bristol County, Massachusetts)
Heman Gibbs Farmstead (Ramsey County, Minnesota)
Henry Bennett House (Washtenaw County, Michigan)
Henry Charles Eitzen Building (Franklin County, Missouri)
Henry-Vernon House (Person County, North Carolina)
Hewson Cox House (Chester County, Pennsylvania)
High Bridge (Cumberland County, Virginia)
Historic Track (Orange County, New York)
Hockanum Mill (Tolland County, Connecticut)
The only remaining wood-framed mill structure in Rockville.
Holt-Balcom Lumber Company Office (Oconto County, Wisconsin)
Hoosac Tunnel (Berkshire County, Massachusetts)
Hope Cemetery (Worcester County, Massachusetts)
Hope Furnace (Vinton County, Ohio)
Hotel Central (Franklin County, Ohio)
Hotel Manning (Van Buren County, Iowa)
House at No. 48 Grove Street (Livingston County, New York)
Private Residence
Hoxie, Timothy, House (Suffolk County, Massachusetts)
Hudson Downtown Historic District (Lenawee County, Michigan)
Hughes House (Jessamine County, Kentucky)
Huntersville Presbyterian Church (Pocahontas County, West Virginia)
Hutchinson House Museum (Waupaca County, Wisconsin)
New England style farmhouse moved to South Park in 1956
Hyer's Hotel (Dane County, Wisconsin)
Former hotel now a private residence
I.O.O.F. Hall, Mokelumne Hill (Calaveras County, California)
Three story fraternal meeting hall built in 1854
Ida Lewis Rock Lighthouse (Newport County, Rhode Island)
Isaac R. Hayden House (Hancock County, Kentucky)
J. H. Rountree Mansion (Grant County, Wisconsin)
Jacinto Courthouse (Alcorn County, Mississippi)
Jacob Conser House (Marion County, Oregon)
Jacob F. Shaffer Farm (Carroll County, Maryland)
James Moore House (Yolo County, California)
James P. Johnson House (Williamson County, Tennessee)
James R. DeBow House (Trousdale County, Tennessee)
Jarville (St. Louis County, Missouri)
Jens and Kari Ringness Farm (Bosque County, Texas)
Joclin--Bradley--Bowling House (Van Buren County, Arkansas)
John Hancock House (Travis County, Texas)
John M. Brown House (Washington County, Texas)
John W. Shaver House (Sharp County, Arkansas)
Jonathan Price House (Summit County, Ohio)
Jose Manuel Ramirez House (Yuba County, California)
Joseph J. Rohrer Farm (Elkhart County, Indiana)
Joseph Suttle House (Cleveland County, North Carolina)
Joseph W. Revere House (Morris County, New Jersey)
Jupiter Inlet Lighthouse (Palm Beach County, Florida)
Kent House and Hitchens House (Warren County, Indiana)
Ketoctin Baptist Church (Loudoun County, Virginia)
Knox Farm Historic District (Rowan County, North Carolina)
Lace House (Richland County, South Carolina)
Lamson, Rufus, House (Middlesex County, Massachusetts)
Lenox District No. 4 Schoolhouse (Madison County, New York)
Lewis Steward House (Kendall County, Illinois)
Limington Academy (York County, Maine)
Litchfield Villa (Kings County, New York)
Little White Schoolhouse (Fond du Lac County, Wisconsin)
Birthplace of the Republican Party
Lorenzo S. Coffin Burial Plot (Webster County, Iowa)
Lynnford-Lyndon Hall (Jefferson County, Kentucky)
Magnolia Manor (Clark County, Arkansas)
Main Building, Mitchell College (Iredell County, North Carolina)
Mantorville Historic District (Dodge County, Minnesota)
Mare Island Naval Shipyard (Solano County, California)
Mariposa County Courthouse (Mariposa County, California)
Mary's River Covered Bridge (Randolph County, Illinois)
Covered bridge over Little Mary's River northeast of Chester, just off IL 150
McLain-Gillmer House (Trumbull County, Ohio)
Mechanics' Hall District (Worcester County, Massachusetts)
Merchant Street Historic District (Honolulu County, Hawaii)
Merkel Mill Complex (Berks County, Pennsylvania)
Millington Green Historic District (Middlesex County, Connecticut)
Millington Green School (Middlesex County, Connecticut)
One-room schoolhouse closed in 1936 & restored in 2005 in East Haddam.
Milton College Historic District (Rock County, Wisconsin)
Mission Chapel (Worcester County, Massachusetts)