Big Sink Rural Historic District (Woodford County, Kentucky)
Big Spring Baptist Church (Montgomery County, Virginia)
Birch Island House (Somerset County, Maine)
Birchrunville General Store (Chester County, Pennsylvania)
Bishop House (Montgomery County, Virginia)
Bishop Portier House (Mobile County, Alabama)
Black Horse Inn (Montgomery County, Pennsylvania)
Black Walnut (Halifax County, Virginia)
Blacksburg Historic District (Montgomery County, Virginia)
Blake-Beaty-Orton House (Jasper County, Texas)
Blantonia Plantation House (Jefferson County, Mississippi)
Blenk House (Campbell County, Kentucky)
Bloomington (Louisa County, Virginia)
Blue Ridge Farm (Fauquier County, Virginia)
Bluebird Building (Missoula County, Montana)
Boca Grande Quarantine Station (Lee County, Florida)
Bocage (Ascension Parish, Louisiana)
Boerner-Fry Company/Davis Hotel (Johnson County, Iowa)
Boggs Mill (Pendleton County, West Virginia)
Bolick Historic District (Catawba County, North Carolina)
Bolin Barn and Smokehouse (Benton County, Arkansas)
Bon Aqua Springs Historic District (Hickman County, Tennessee)
Bonham House (Saluda County, South Carolina)
Historic home near Saluda, SC
Boone-Douthit House (Anderson County, South Carolina)
Historic home near Pendleton, SC
Borderside (Garrett County, Maryland)
Borneman Mill (Berks County, Pennsylvania)
Boshell's Mill (Walker County, Alabama)
Bost Mill Historic District (Cabarrus County, North Carolina)
Boston Historic District (Thomas County, Georgia)
Boulware Spring Waterworks (Alachua County, Florida)
Bowerman Barn (Trinity County, California)
Bowman House (Washington County, Maryland)
Bowyer--Trollinger Farm (Montgomery County, Virginia)
Box Elder Flouring Mill (Box Elder County, Utah)
Boxwoods, The (Rockingham County, North Carolina)
Boyce Historic District (Clarke County, Virginia)
Boyer--Mertz Farm (Berks County, Pennsylvania)
Boyette Slave House (Johnston County, North Carolina)
Braches House (Gonzales County, Texas)
Bradford Farm Historic District (Penobscot County, Maine)
Bradford School House (Bracken County, Kentucky)
Bradley Beach Station (Monmouth County, New Jersey)
Bradley's Country Store Complex (Leon County, Florida)
Bragassa Toy Store (Lynchburg, Virginia)
Bramwell Historic District (Mercer County, West Virginia)
Brandywine Building and Loan Assoc. Rowhouses (Chester County, Pennsylvania)
Brassfield Baptist Church (Granville County, North Carolina)
Brattleboro Downtown Historic District (Windham County, Vermont)
Breckenridge Historic District (Summit County, Colorado)
Breneman-Turner Mill (Rockingham County, Virginia)
Brentsville Historic District (Prince William County, Virginia)
Brevard--Macon House (Cannon County, Tennessee)
Brewer's Mill (Stone County, Arkansas)
Brewster County Courthouse and Jail (Brewster County, Texas)
Brick House (Amherst County, Virginia)
Brick Tavern House (Belmont County, Ohio)
Brick Tavern Stand (Schuyler County, New York)
Bridge Street Historic District (Orange County, New York)
Bridgeport Hill Service Station (Canadian County, Oklahoma)
Bristol Historic District (Bucks County, Pennsylvania)
Bristow Tire Shop (Creek County, Oklahoma)
Brizendine House (Travis County, Texas)
Broad Street Station (Richmond, Virginia)
Classic railroad depot geting a new life after the last passenger train pulled out
Brobst Mill (Berks County, Pennsylvania)
Brockerhoff Mill (Centre County, Pennsylvania)
Bronson-Mulholland House (Putnam County, Florida)
Brook Hill Farm (Bedford County, Virginia)
Brooks-Wilbarger House (Bastrop County, Texas)
Brown-Neas House (Greene County, Tennessee)
Bryan Compress and Warehouse (Brazos County, Texas)
Bryan Neck Presbyterian Church (Bryan County, Georgia)
Bryan-Bell Farm (Jones County, North Carolina)
Bryce Canyon Airport (Garfield County, Utah)
Buchanan County Courthouse and Jail (Buchanan County, Missouri)
Buck House (Prince George's County, Maryland)
Buckhorn Baths Motel (Maricopa County, Arizona)
Buckland (Gates County, North Carolina)
Buckley Homestead (Lake County, Indiana)
Buckridge Ranch House (Mendocino County, California)
Buena Vista Colored School (Buena Vista, Virginia)
Building at 28--34 1/2 Academy Street (New Castle County, Delaware)
Building at 305 Jefferson (Madison County, Alabama)
Building at 592--98 West 200 South (Salt Lake County, Utah)
Building at High and Cannon Streets (Sussex County, Delaware)
Bunce School (Boulder County, Colorado)
Bunker Hill Covered Bridge (Catawba County, North Carolina)
Covered bridge over Lyle Creek on Old US 70 at Conner Park
Burd Patterson House (Schuylkill County, Pennsylvania)
Burdett Woody House (Chatham County, North Carolina)
Buresh Farm (Johnson County, Iowa)
Burg Wagon Works Building (Van Buren County, Iowa)
Burgaw Depot (Pender County, North Carolina)
Burgess Garage (Richland County, Montana)
Burlington (Orange County, Virginia)
Burlington Historic District (Mineral County, West Virginia)
Burnt Cabins Gristmill Property (Fulton County, Pennsylvania)
Burr Oak School (Jewell County, Kansas)
Burras House (Martin County, North Carolina)
Burrus Mills Elevator C (Kingfisher County, Oklahoma)
Butler Downtown Historic District (Taylor County, Georgia)
Buxton Place (Warren County, North Carolina)
Buzzard's Roost Historic District (Polk County, Tennessee)
Byrnside-Beirne-Johnson House (Monroe County, West Virginia)
C and H Refinery Historic District (Niobrara County, Wyoming)
C. E. Moyer Nurseries Property (Douglas County, Oregon)
C. R. Alden Building (Victoria County, Texas)
C. S. Brown School Auditorium (Hertford County, North Carolina)
Cady Hall (Santa Cruz County, Arizona)
Cahaba Homestead Village Historic District (Jefferson County, Alabama)
Calaveras County Bank (Calaveras County, California)
Caldwell Presbyterian Church Manse (Essex County, New Jersey)
Calhoun-Gibert House (McCormick County, South Carolina)
Califon Historic District (Hunterdon County, New Jersey)
Callis General Store and Post Office (Trimble County, Kentucky)
Calumet Hotel (Pennington County, South Dakota)
Cambria Historic District (Montgomery County, Virginia)
Cambria Iron Company (Cambria County, Pennsylvania)
Cambria School (Latimer County, Oklahoma)
Cambridge News Office (Washington County, Idaho)
Camp Academy (Buncombe County, North Carolina)
Camp Branch Historic District (Spencer County, Kentucky)
Camp Ground Methodist Church (Cumberland County, North Carolina)
Campbell Townhouses (Multnomah County, Oregon)
Cana Store and Post Office (Davie County, North Carolina)
Canelo School (Santa Cruz County, Arizona)
Cannady-Brogden Farm (Wake County, North Carolina)
Cannon Building (Greenville County, South Carolina)
Cannon Falls Commercial Historic District (Goodhue County, Minnesota)
Cape Fear and Yadkin Valley Railway Passenger Depot (Cumberland County, North Carolina)
Cape Fear Lighthouse Complex (Brunswick County, North Carolina)
Cappahosic House (Gloucester County, Virginia)
Capt. Barton Peck House (Goliad County, Texas)
Capt. Harold B. Jeffries House (Pasco County, Florida)
Capt. John Koonts Jr., Farm (Davidson County, North Carolina)
Capt. Noble Allan Birge House (Grayson County, Texas)
Captain's Houses (Queen Anne's County, Maryland)
Cardinal Hotel (Dane County, Wisconsin)
Former hotel now serving as an apartment building
Carl Gottlieb Heins House (Manitowoc County, Wisconsin)
One-and-a-half story Colonial Revival residence in downtown Kiel
Carleton Bridge (Cheshire County, New Hampshire)
Covered bridge over South Branch Ashuelot River on Carlton Road in Swanzey
Carmichaels Covered Bridge (Greene County, Pennsylvania)
Covered bridge over Muddy Creek on Old Town Street
Carnegie Public Library (Las Animas County, Colorado)
Carr, Robert P., House (Sagadahoc County, Maine)
Carroll County Almshouse and Farm (Carroll County, Maryland)
Carrollton Historic District (Carroll County, Kentucky)
Carson City Public Buildings (Carson City, Nevada)
Cartersville Historic District (Cumberland County, Virginia)
Carthage United Methodist Church (Smith County, Tennessee)
Cartmill Farm House (Oklahoma County, Oklahoma)
Carver Historic District (Carver County, Minnesota)
Casanova Historic District (Fauquier County, Virginia)
Casino Hall (Bastrop County, Texas)
Castle Rock Depot (Douglas County, Colorado)
Castroville Historic District (Medina County, Texas)
Caswell County Courthouse (Caswell County, North Carolina)
Cathance Water Tower (Sagadahoc County, Maine)
Catoctin Furnace Historic District (Frederick County, Maryland)
Causeyville Historic District (Lauderdale County, Mississippi)
Cave Creek School (Gillespie County, Texas)
Cave Johnson House (Boone County, Kentucky)
Cecil's Mill Historic District (St. Mary's County, Maryland)
Cedar Grove (Mecklenburg County, North Carolina)
Cedar Hill (Rockbridge County, Virginia)
Cedar Lane (Edgecombe County, North Carolina)
Cedar Point Farm (Morgan County, Indiana)
Cedarock Park Historic District (Alamance County, North Carolina)
Cedars Plantation (Morehouse Parish, Louisiana)
Cedarville School (Gilmer County, West Virginia)
Centenary College (East Feliciana Parish, Louisiana)
Centennial Work Center (Albany County, Wyoming)
Center Street A.M.E. Zion Church (Iredell County, North Carolina)
Central Baptist Church (Charleston County, South Carolina)
Central Colored School (Jefferson County, Kentucky)
Central Core Historic District (Mobile County, Alabama)
Central Dakota Flouring Mill Grain Elevator (Kingsbury County, South Dakota)
Central Leaksville Historic District (Rockingham County, North Carolina)
Central of Georgia Railroad Terminal (Muscogee County, Georgia)
Central School Historic District (Cleveland County, North Carolina)
Central Shuqualak Historic District (Noxubee County, Mississippi)
Central Vermont Railroad Headquarters (Franklin County, Vermont)
Centre Mills (Centre County, Pennsylvania)
Cerl Wright Covered Bridge (Washington County, Pennsylvania)
Chalet Suzanne (Polk County, Florida)
Chamberlain-Kay House (Anderson County, South Carolina)
Historic home in Belton, SC
Chambers Covered Bridge (Lane County, Oregon)
Abandoned bridge on Railroad Bridge
Chambers House (New Castle County, Delaware)
Chamounix (Philadelphia County, Pennsylvania)
Chapel of Santa Cruz (Taos County, New Mexico)
Chapman--Barnard Ranch Headquarters (Osage County, Oklahoma)
Charles B. Henry Barn (Calhoun County, Alabama)
Charles City County Courthouse (Charles City County, Virginia)