All - Constructed - 1910–1919
| Breslin |
| Brewer's Mill |
| Brice, Orlando, House |
| Brick Block |
| Bridge No. 122 |
| Brinks House |
| Brittain-Garvin House |
| Broadway Bridge |
| Broadway Hotel |
| Bronx Borough Courthouse |
| Brooklyn Trust Company Building |
| Brown Apartments |
| Brown County Courthouse |
| Brown-Evans House |
| Browning Apartments |
| Brown, Silas L., House |
| Browns Valley Carnegie Public Library |
| Brownsville Carnegie Library |
| Bruce, Blanche Kelso, Elementary School |
| Bruneau Episcopal Church |
| Brunell House |
| Bryan Building |
| Bryan County Courthouse |
| Bryant, H. H., Garage |
| Bryan, William Jennings, House |
| Bryn Mawr Apartments |
| Bryson Apartment Hotel |
| Buffalo Bill Dam |
| Buffalo Lodge |
| Buffalo Public School #63 (PS 63) |
| Buffalo Public School No. 57 (PS 57) |
| Buhl Village Hall |
| Building 6981, Camp Shelby |
| Building at 202 W. Third Street |
| Building at 237-239 Main Street |
| Building at 257 East Delaware |
| Building at 38-48 Richardson Avenue |
| Building at 51 Hunt Street |
| Building at 52 Main Street |
| Building at 606 Main Street |
| Building at 614 Main Street |
| Building at 923-925 Michigan Avenue |
| Buildings at 35-37 Richardson Avenue |
| Buildings at 80 and 88 W. Brittania St. |
| Bullard Hotel |
| Burlington Carnegie Free Library |
| Burlington Northern Depot |
| Burlington Railroad Depot |
| Burnside Lodge |
| Burr Oak United Methodist Church |
| Burton Building |
| Bush-Usher House |
| Butler, Emmett, House |
| Butler Institute Of American Art |
| Butte County Courthouse amd Historic Jail Building |
| Butterfly Lodge |
| Buttrick, Francis, Library |
| Byfield, Dr. Albert Henry, House |
| Byrne, Tom, House |
| Byrns, Daniel and Nellie, House |
| Cable, Benjamin Stickney, Memorial Hospital |
| Cabrillo National Monument |
| Cadillac Automobile Company Building |
| Cahn-Crawford House |
| Caldwell Carnegie Library |
| Caldwell Carnegie Library |
| Calexico Carnegie Library |
| Calhoun, Apartments, The |
| Calhoun County Courthouse |
| California Cotton Mills Company Factory |
| California Creek Missionary Baptist Church |
| Callanwolde |
| Calloway County Courthouse |
| Calumet County Courthouse |
| Calvary Methodist Episcopal Church |
| Calway, Forrest D. and Marian, House |
| Cambridge News Office |
| Camp Alkulana Historic District |
| Camp Curtin Fire Station |
| Camp Five Farmstead |
| Camp Manor Apartments |
| Camp Tosebo |
| Camp-Woods |
| Candler Street School |
| Canton Carnegie Library |
| Canyon Diablo Bridge |
| Cape Hinchinbrook Light Station |
| Capitol Building |
| Carden, David A., House |
| Cardona Residence |
| Cargill, Walter Hurt |
| Caribou County Courthouse |
| Carkhuff, Stacy G., House |
| Carnegie Branch Library |
| Carnegie Free Library |
| Carnegie Public Library |
| Carolands, The |
| Carolina Supply Company |
| Carpenter Hotel |
| Carter, Benjamin H., House |
Data from United States Park Service and Wikidata
