Chapman, Taylor, House (Hartford County, Connecticut)
Charles Benbow House (Guilford County, North Carolina)
Charlestown Historic District (Cecil County, Maryland)
Chase-Lloyd House (Anne Arundel County, Maryland)
Chelsea Historic District (New York County, New York)
Chericoke (King William County, Virginia)
Cherry Mansion (Hardin County, Tennessee)
Chester Hall (Queen Anne's County, Maryland)
Chestertown Historic District (Kent County, Maryland)
Chimneys, The (Fredericksburg, Virginia)
Chowan County Courthouse (Chowan County, North Carolina)
Chretien Point Plantation (St. Landry Parish, Louisiana)
Christ Church (Lancaster County, Virginia)
Christ Church (Philadelphia County, Pennsylvania)
Christ Church (Episcopal), Shrewsbury (Monmouth County, New Jersey)
Christ Church Guilford (Howard County, Maryland)
Christian Bechdel II House (Centre County, Pennsylvania)
Christiana Historic District (New Castle County, Delaware)
Church of St. Wenceslaus--Catholic (Scott County, Minnesota)
City of Camden Historic District (Kershaw County, South Carolina)
Historic district in Camden, SC
Clark, Andrew, House (New London County, Connecticut)
Clark, Capt. John, House (Windham County, Connecticut)
Clarke, Pitt, House (Bristol County, Massachusetts)
Clay Hill (Taylor County, Kentucky)
Claymont Court (Jefferson County, West Virginia)
Clear Springs Plantation (Craven County, North Carolina)
Clemuel Ricketts Mansion (Sullivan County, Pennsylvania)
Clermont (Columbia County, New York)
Cliffs, The (Philadelphia County, Pennsylvania)
Clifton (Northumberland County, Virginia)
Clifton (Cumberland County, Virginia)
Clinton House (Dutchess County, New York)
Cliveden (Philadelphia County, Pennsylvania)
Cochran Grange (New Castle County, Delaware)
Codman House (Middlesex County, Massachusetts)
Coeymans-Bronck Stone House (Albany County, New York)
Cogswell's Grant (Essex County, Massachusetts)
Col Alto (Lexington, Virginia)
Col. Benjamin Simond House (Berkshire County, Massachusetts)
Col. John Hannum House (Chester County, Pennsylvania)
Col. John Stuart House (Charleston County, South Carolina)
Col. Joseph Ellis House (Camden County, New Jersey)
Colburn House State Historic Site (Kennebec County, Maine)
Cold Spring Farm (Sagadahoc County, Maine)
Coldbrook Farm (Franklin County, Pennsylvania)
Cole, Benjamin, House (Bristol County, Massachusetts)
Coleman--Desha Plantation (Harrison County, Kentucky)
Collen Brook Farm (Delaware County, Pennsylvania)
Colonial Annapolis Historic District (Anne Arundel County, Maryland)
Colonial Germantown Historic District (Philadelphia County, Pennsylvania)
Columbian House (Lucas County, Ohio)
Columbus Historic District (Muscogee County, Georgia)
Como Farm (Chester County, Pennsylvania)
Compton Bassett (Prince George's County, Maryland)
Conant, Exercise, House (Essex County, Massachusetts)
Concord Civic District (Merrimack County, New Hampshire)
Concord Hall (Fairfield County, Ohio)
Concord Historic District (Merrimack County, New Hampshire)
Connecticut Hall, Yale University (New Haven County, Connecticut)
Conoho Creek Historic District (Martin County, North Carolina)
Cooch's Bridge Historic District (New Castle County, Delaware)
Cook, Will Marion, House (New York County, New York)
Cookes House (York County, Pennsylvania)
Cool Spring Battlefield (Clarke County, Virginia)
Cooper Pearson-How and Lawrence Houses (Burlington County, New Jersey)
Coor-Bishop House (Craven County, North Carolina)
Coor-Gaston House (Craven County, North Carolina)
Coram Shipyard Historic District (Bristol County, Massachusetts)
Corbit-Sharp House (New Castle County, Delaware)
Cornehill (Calvert County, Maryland)
Cornwell Farm (Fairfax County, Virginia)
Corvallis Hotel (Benton County, Oregon)
Cove Island Houses (Fairfield County, Connecticut)
Coventryville Historic District (Chester County, Pennsylvania)
Covered Bridge Historic District (Hunterdon County, New Jersey)
Coward--Smith House (Monmouth County, New Jersey)
Cowdry, Nathaniel, House (Middlesex County, Massachusetts)
Cowper-Thompson House (Hertford County, North Carolina)
Cragfont (Sumner County, Tennessee)
Craven Hall (Bucks County, Pennsylvania)
Crocker, Ebenezer Jr., House (Barnstable County, Massachusetts)
Crockett, John, House (Rockingham County, New Hampshire)
Crombie Street District (Essex County, Massachusetts)
Crosby, Daniel, House (Barnstable County, Massachusetts)
Cross Keys House (Union County, South Carolina)
Historic home in Cross Keys, SC
Cupola House (Chowan County, North Carolina)
Currier, Capt. Jonathan, House (Rockingham County, New Hampshire)
Curtis, Nathaniel, House (Fairfield County, Connecticut)
Cushman Village Historic District (Hampshire County, Massachusetts)
Cuttalossa Valley Historic District (Bucks County, Pennsylvania)
Dalton House (Essex County, Massachusetts)
Daman, Rev. George, House (Windsor County, Vermont)
Daniel J. Malarkey House (Multnomah County, Oregon)
Daniel Meredith House (Chester County, Pennsylvania)
Davies House (Berks County, Pennsylvania)
Davis Town Meeting House (Suffolk County, New York)
Dawlis Mill--Spring Mill Historic District (Hunterdon County, New Jersey)
Deacon Andrew Hetfield House (Union County, New Jersey)
Dean-Barstow House (Bristol County, Massachusetts)
Dean-Hartshorn House (Bristol County, Massachusetts)
Deane House (Hertford County, North Carolina)
Deane, Silas, House (Hartford County, Connecticut)
Dearborn Inn and Colonial Homes (Wayne County, Michigan)
Delaware State Museum Buildings (Kent County, Delaware)
Delos Allen Chappell House (Denver County, Colorado)
Dewey House (Lake County, Illinois)
Dexter, Edward, House (Providence County, Rhode Island)
Dey Mansion (Passaic County, New Jersey)
Dighton Wharves Historic District (Bristol County, Massachusetts)
Ditchley (Northumberland County, Virginia)
Dolan, Terence, House (Essex County, Massachusetts)
Dorneyville Crossroad Settlement (Lehigh County, Pennsylvania)
Dorsey Hall (Howard County, Maryland)
Dorsey-Palmer House (Washington County, Maryland)
Dover Green Historic District (Kent County, Delaware)
Downtown Charles Town Historic District (Jefferson County, West Virginia)
Dr. B. Stauffer House (Lebanon County, Pennsylvania)
Dr. Julius Lemoyne House (Washington County, Pennsylvania)
Dr. Walter Warfield Building (Fayette County, Kentucky)
Drumthwacket (Mercer County, New Jersey)
Dublin Lake Historic District (Cheshire County, New Hampshire)
Dubois--Kierstede Stone House (Ulster County, New York)
Duke House (Louisa County, Virginia)
Duke-Lawrence House (Northampton County, North Carolina)
Dumbarton House (Washington, District of Columbia)
Duncan Tavern (Bourbon County, Kentucky)
Durham Sanders House (Taylor County, Kentucky)
Dutch Reformed Church (Middlesex County, New Jersey)
Dutton--Holden Homestead (Middlesex County, Massachusetts)
Dwight--Derby House (Norfolk County, Massachusetts)
Dyerstown Historic District (Bucks County, Pennsylvania)
Earle Town House (Greenville County, South Carolina)
East Berlin Historic District (Adams County, Pennsylvania)
East Blackstone Friends Meetinghouse (Worcester County, Massachusetts)
East Blackstone Village Historic District (Worcester County, Massachusetts)
East Brandywine Historic District (New Castle County, Delaware)
East Bridgewater Common Historic District (Plymouth County, Massachusetts)
East Freetown Historic District (Bristol County, Massachusetts)
East Gloucester Square Historic District (Essex County, Massachusetts)
East Holliston Historic District (Middlesex County, Massachusetts)
East Lancaster Avenue Historic District (Chester County, Pennsylvania)
East Village Historic District (Hampshire County, Massachusetts)
East Windsor Hill Historic District (Hartford County, Connecticut)
Eastham Center Historic District (Barnstable County, Massachusetts)
Eastman, George, House (Monroe County, New York)
Easton House (Northampton County, Pennsylvania)
Eaton-Prescott House (Middlesex County, Massachusetts)
Eayres Plantation and Mill Site (Burlington County, New Jersey)
Edgefield Historic District (Edgefield County, South Carolina)
Historic commercial & residential district in Edgefield, SC
Edgewood (Nelson County, Kentucky)
Edmund Wilson House (Lewis County, New York)
Edward Brinton House (Chester County, Pennsylvania)
Edward Colston House (Berkeley County, West Virginia)
Edward S. Godfrey Gen., House (Burlington County, New Jersey)
Edward's Plain--Dowse's Corner Historic District (Middlesex County, Massachusetts)
Edwards-Franklin House (Surry County, North Carolina)
Elam-Camp House (Wilkinson County, Georgia)
Ellerslie (Cumberland County, North Carolina)
Ellerslie (Charles County, Maryland)
Ellsworth, Oliver, Homestead (Hartford County, Connecticut)
Elm Street Historic District (Hampshire County, Massachusetts)
Elmwood (Bertie County, North Carolina)
Elmwood (Middlesex County, Massachusetts)
Elmwood (Essex County, Virginia)
Elsing Green (King William County, Virginia)
Elston House (Talladega County, Alabama)
Elverson Historic District (Chester County, Pennsylvania)
Emerson, Capt. Oliver, Homestead (Essex County, Massachusetts)
Emma Willard School (Rensselaer County, New York)
Endview Plantation (Newport News, Virginia)
Enfield Historic District (Hartford County, Connecticut)
Eno, Amos, House (Hartford County, Connecticut)
Eppington (Chesterfield County, Virginia)
Ernest Loeb House (Lake County, Illinois)
Estey Tavern (Essex County, Massachusetts)
Eureka College Administration and Chapel (Woodford County, Illinois)
Evans--Gaige--Dillenback House (Jefferson County, New York)
Everett--Bradner House (Orange County, New York)
Evergreen Hamlet (Allegheny County, Pennsylvania)
Exchange and Provost (Charleston County, South Carolina)
F. Julius LeMoyne House (Washington County, Pennsylvania)
Fair Mount (Winchester, Virginia)
Fairfax-Moore House (Alexandria, Virginia)
Fairfield (Clarke County, Virginia)
Fairfield Plantation (Charleston County, South Carolina)
Fairmount Boulevard District (Cuyahoga County, Ohio)
Fairmount Park (Philadelphia County, Pennsylvania)
Fairntosh Plantation (Durham County, North Carolina)
Fairview (New Castle County, Delaware)
Fairview (New Castle County, Delaware)
Fall Hill (Spotsylvania County, Virginia)
Falls-Hobbs House (Iredell County, North Carolina)
Falmouth Village Green Historic District (Barnstable County, Massachusetts)
Fancy Farm (Bedford County, Virginia)
Faneuil Hall (Suffolk County, Massachusetts)
Farnum, Moses, House (Worcester County, Massachusetts)
Fassitt House (Worcester County, Maryland)
Fat Oxen (Frederick County, Maryland)
Favoni (Cabarrus County, North Carolina)