Cottonwood School #45 (Boone County, Arkansas)
Country Club Historic District (Jefferson County, Alabama)
Country Woman's Club (Montgomery County, Tennessee)
Court (Los Angeles County, California)
Court (Los Angeles County, California)
Court (Los Angeles County, California)
Court at 533--549 North Lincoln Avenue (Los Angeles County, California)
Courthouse Historic District (Flathead County, Montana)
Courthouse Square Historic District (Ingham County, Michigan)
Courtland Historic District (Lawrence County, Alabama)
Courtland Historic District (Southampton County, Virginia)
Courtland School (Southampton County, Virginia)
Covenant Beach Bible Camp (King County, Washington)
Coykendall Lodge (Ulster County, New York)
Coyote Range (Coconino County, Arizona)
Craddock Historic District (Portsmouth, Virginia)
Craftsman Farms (Morris County, New Jersey)
Crags Lodge (Larimer County, Colorado)
Craig--Beasley House (Williamson County, Tennessee)
Cranbury Historic District (Middlesex County, New Jersey)
Cranston--Geary House (Sacramento County, California)
Cravens-Coleman House (Hamilton County, Tennessee)
Craver Apartment Building (Forsyth County, North Carolina)
Crawfordsville Commercial Historic District (Montgomery County, Indiana)
Crimora School (Augusta County, Virginia)
Crossnore Presbyterian Church (Avery County, North Carolina)
Crossnore School Historic District (Avery County, North Carolina)
Crossville Tennessee Highway Patrol Building (Cumberland County, Tennessee)
Crowley Historic District (Acadia Parish, Louisiana)
Crown King Ranger Station (Yavapai County, Arizona)
Culver Commercial Historic District (Marshall County, Indiana)
Culver Historic District (Vanderburgh County, Indiana)
Cumberland Central Business District (Harlan County, Kentucky)
Cumberland Gap Historic District (town) (Claiborne County, Tennessee)
Cumberland Historic District (Marion County, Indiana)
Cumberland Mountain School (Cumberland County, Tennessee)
Curtis W. Powell House (Yamhill County, Oregon)
Cypress Court (Los Angeles County, California)
D. D. Eastham House (Ellis County, Texas)
D. D. Parramore House (Taylor County, Texas)
D. H. and Leah Curran House (Potter County, South Dakota)
D. L. Evans Sr., Bungalow (Oneida County, Idaho)
D. L. McRae House (Nevada County, Arkansas)
D. M. Francis House (Coconino County, Arizona)
Dahlonega School #1 (Wapello County, Iowa)
Daktoa Tin and Gold Mine (Lawrence County, South Dakota)
Damascus Gymnasium (Van Buren County, Arkansas)
Dan E. Caison, Sr. House (Sampson County, North Carolina)
Daniel and Nellie Byrns House (Columbia County, Wisconsin)
Daniel F. Murphy House (Ada County, Idaho)
Daniel J. Donahoe House (Kay County, Oklahoma)
Daniel O'Connell House (Fulton County, Illinois)
David A. Carden House (Harris County, Texas)
David H. Jones House (Utah County, Utah)
David M. Ross House (Iron County, Michigan)
David S. Castle House (Taylor County, Texas)
David Wickersham House (Graham County, Arizona)
Davidsonville Historic District (Anne Arundel County, Maryland)
Dawson Historic District (Fayette County, Pennsylvania)
Deacon's Point Historic District (Fairfield County, Connecticut)
DeBarr Historic District (Cleveland County, Oklahoma)
Deener House (White County, Arkansas)
Del Norte Place Historic District (Maricopa County, Arizona)
Delaware, Lackawanna & Western Railroad Station (Livingston County, New York)
Former depot now an art gallery, gift shop, and tea room
Delmar Loop-Parkview Gardens Historic District (Unspecified county, Missouri)
Delmar--Lema Historic District (Shelby County, Tennessee)
Dennis and Christine Garrison House (Faulkner County, Arkansas)
Dennis J. Haggerty House (Iron County, Michigan)
Derby Historic District (Wise County, Virginia)
Dewey City Historic District (Thomas County, Georgia)
Dicey, Russell M., House (Norfolk County, Massachusetts)
Dick Callen House (Jerome County, Idaho)
Dils-Downer House (Scott County, Iowa)
Dilworth Historic District (Mecklenburg County, North Carolina)
Ditchrider House (Butte County, South Dakota)
Division of St. John Historic District (St. Tammany Parish, Louisiana)
Division Street Historic District (Grant County, Wisconsin)
Dix Hill (Wake County, North Carolina)
Dixie Highway Historic District (Kenton County, Kentucky)
Dixieland Historic District (Polk County, Florida)
Doctor Longenecker Office Building (Franklin County, Ohio)
Dodson Memorial Building (Washington County, Arkansas)
Don Carlos Court (Los Angeles County, California)
Don Gaspar Historic District (Santa Fe County, New Mexico)
Don Tooley House (Jerome County, Idaho)
Donald House (Yakima County, Washington)
Donaldsonville Historic District (Ascension Parish, Louisiana)
Donoho Hotel Historic District (Macon County, Tennessee)
Dorris Ranch (Lane County, Oregon)
Douglas Residential Historic District (Cochise County, Arizona)
Dowding--Rasmussen House (Salt Lake County, Utah)
Downtown Abbeville Historic District (Vermilion Parish, Louisiana)
Downtown Buda Historic District (Hays County, Texas)
Downtown Elkin Historic District (Surry County, North Carolina)
Downtown Garner Historic District (Wake County, North Carolina)
Downtown Jacksonville Historic District (Calhoun County, Alabama)
Downtown Millen Historic District (Jenkins County, Georgia)
Downtown Roswell Historic District (Chaves County, New Mexico)
Dr. A. H. Allen Cottage (Franklin County, New York)
Dr. A. M. Brown House (Jefferson County, Alabama)
Dr. Andrew Anderson House (Lincoln County, South Dakota)
Dr. B. F. Coop House (Harris County, Texas)
Dr. Brailsford R. Brazeal House (Fulton County, Georgia)
Dr. Calvin M. Baber House (Greene County, Georgia)
Dr. Carl Marcus House (Carbon County, Montana)
Dr. Cleveland Hollabaugh House (Searcy County, Arkansas)
Dr. David and Juanita Lewis House (Salt Lake County, Utah)
Dr. Donald C. Balfour House (Olmsted County, Minnesota)
Dr. E.P. McGehee Infirmary (Chicot County, Arkansas)
Dr. Edmond West House (Yakima County, Washington)
Dr. Edwards House (Garrard County, Kentucky)
Dr. Elmo N. Lawrence House (Wake County, North Carolina)
Dr. Fred Stone Sr., Hospital (Roane County, Tennessee)
Dr. Frizell House (White County, Arkansas)
Dr. George Huffman House (Pinal County, Arizona)
Dr. J. A. Gorman House (De Kalb County, Alabama)
Dr. J. A. Reuter House (Wasco County, Oregon)
Dr. Jacob Moore Frazier House (Bell County, Texas)
Dr. James W. Daniel House (Evans County, Georgia)
Dr. John and Viola Phillips House and Office (Pend Oreille County, Washington)
Dr. John Christie Ware Bungalow (Bergen County, New Jersey)
Dr. John F. and Mary Reddy House (Jackson County, Oregon)
Dr. L. W. Beery House (Franklin County, Ohio)
Dr. Leo Ricen House (Multnomah County, Oregon)
Dr. M. J. Crouch House (Boone County, Kentucky)
Dr. Owen Meredith House (Hart County, Georgia)
Dr. Pellie G. Graves House (Allen County, Kentucky)
Dr. Robert and Jessie Bell House (Spokane County, Washington)
Dr. Susan Picotte Memorial Hospital (Thurston County, Nebraska)
Dr. Thomas H. Price House (Tipton County, Tennessee)
Dr. Toler R. White House (Mohave County, Arizona)
Dr. W. T. Bolton House (Los Angeles County, California)
Dr. Warren Shepherd House (Beaver County, Utah)
Dr. William Austin Cannon House (Pima County, Arizona)
Dr. William E. Reid House (Vernon Parish, Louisiana)
Drehr Place Historic District (East Baton Rouge Parish, Louisiana)
Dressing Apartments (Yuma County, Arizona)
Druid Hills Historic District (Henderson County, North Carolina)
Druid Hills Historic District (DeKalb County, Georgia)
Drury Cottage (Franklin County, New York)
Dubina Historic District (Fayette County, Texas)
Ducktown Historic District (Polk County, Tennessee)
Duff T. Brown House (Mohave County, Arizona)
Dunaway House (Pulaski County, Arkansas)
Duncan Matheson House (Deer Lodge County, Montana)
Dundee Woman's Club Hall (Yamhill County, Oregon)
Dune Acres Clubhouse (Porter County, Indiana)
Dunlap's Dining Room (Sacramento County, California)
Dunnellon Boomtown Historic District (Marion County, Florida)
DuPont Village Historic District (Pierce County, Washington)
Durham School (Washington County, Arkansas)
Dworman, David, Three-Decker (Worcester County, Massachusetts)
E. A. Kemp House (Brazos County, Texas)
E. Clyde and Mary Elliott House (Wharton County, Texas)
E. F. Hunt House (Ada County, Idaho)
E. H. D. Bendt House (Victoria County, Texas)
E. J. Blazek House (Brazos County, Texas)
E. J. Fossati House (Victoria County, Texas)
E. V. Cooke House (Jerome County, Idaho)
E.E. Hooten House (Faulkner County, Arkansas)
Eagar Townsite Historic District (Apache County, Arizona)
Eagle Butte School (Chouteau County, Montana)
Eagle House (Lonoke County, Arkansas)
Eagle Ranger Station (Clallam County, Washington)
Eaglefield Place (Clay County, Indiana)
Eagles Mere Historic District (Sullivan County, Pennsylvania)
Earl and Mildred Ward House (Faulkner County, Arkansas)
Earl Oatman House (Jefferson County, Washington)
Earl Shepherd Bungalow (Bear Lake County, Idaho)
Earll Place Historic District (Maricopa County, Arizona)
Earnest Farms Historic District (Greene County, Tennessee)
Earnest Ranch (Garfield County, Colorado)
East Blue Hill Library (Hancock County, Maine)
East Buntyn Historic District (Shelby County, Tennessee)
East Capitol Drive Historic District (Waukesha County, Wisconsin)
East Church Street Historic District (Walton County, Georgia)
East End Historic District (Warren County, Ohio)
East End Historic District (Thomas County, Georgia)
East End Historic District (Lauderdale County, Mississippi)
East End Methodist Episcopal Church (Pulaski County, Arkansas)
East Fort Wayne Street Historic District (Kosciusko County, Indiana)
Two blocks of stately homes of unique architectural details