All - Constructed - 1890–1899
| Boston Building |
| Bournedale Village School |
| Bourne, Jonathan, Public Library |
| Bouvier-Lothrop House |
| Bowditch School |
| Bowers House |
| Bowser Gazebo |
| Box Elder Stake Tabernacle |
| Boy's High School |
| Bradbury Building |
| Brady Cabin |
| Brame House |
| Brandegee Estate |
| Brandon Village Hall and Library |
| Brannen-Devine House |
| Brayton Methodist Episcopal Church |
| Breakers, The |
| Breaux House |
| Breidenhart |
| Brewster Memorial Hall |
| Bridge No. 10/Adelaide Bridge |
| Brigham City Mercantile and Manufacturing Association Mercantile Store |
| Brigham House |
| Brinkmeyer House |
| Briscoe, Benjamin E., House |
| Broadway Winter Hill Congregational Church |
| Brockton City Hall |
| Brook Farm |
| Brooklyn Museum |
| Brooks-Hughes House |
| Brotherhood of Locomotive Engineers Hall |
| Brown, Alexander, House |
| Brown, A.R., House |
| Browne-Masonic Building |
| Brown House |
| Brown-Price House |
| Brumback Library |
| Buchanan, I. W. P., House |
| Buhler, Theodore, House |
| Buhl, Frank H., Mansion |
| Buhl IOOF Building |
| Building at 1101-1113 Maple Avenue |
| Building at 1209-1217 Maple Avenue |
| Building at 138-142 Portland Street |
| Building at 1401-1407 Elmwood Avenue |
| Building at 1406 Romero |
| Building at 701 Roma NW |
| Building at 73 Mansion St. |
| Bull-of-the-Woods Logging Scow |
| Buresh Farm |
| Burlington and Quincy High Line Hill City to Keystone Branch |
| Burlington Hotel |
| Burnham, James and Amy, Farmstead |
| Burt, Nathaniel H., House |
| Butler Flats Light Station |
| Butler, James And Clara, House |
| Buttonwood Covered Bridge |
| Bynum House |
| Byrne, Gov. Frank M., House |
| Cabin Creek Ranch |
| Caffeys Inlet Lifesaving Station |
| Cairo Apartment Building |
| Caldwell-Hopson House |
| Caldwell House |
| Calhoun School Principal's House |
| California Wine and Liquor Store |
| Callahan, John L., House |
| Callahan, T. M., House |
| Call-Booth House |
| Calvary Baptist Church/First Baptist Church |
| Calvinistic Congregational Church |
| Cameron County Courthouse |
| Camp Curtin Memorial Methodist Episcopal Church |
| Capital Traction Company Union Station |
| Carey, J. W., House |
| Carling, Benedictus, House |
| Carnegie Hall |
| Carr, Martin W., School |
| Carson, John, House |
| Caruthers House |
| Cary, Freeman Grant, Pleasant Hill Academy |
| Casa Grande National Monument |
| Castle Gatehouse, Washington Aqueduct |
| Castle Hill Lighthouse |
| Castle Station |
| Cataumet Schoolhouse |
| Catskill Charcoal Ovens |
| Cavanaugh Bridge |
| Cavanaugh, James House |
| Cayey Bridge |
| Center Road Culvert |
| Central Baptist Church |
| Central Congregational Church |
| Central High School |
| Central Library |
| Century Association Building |
| Chamberlain, George Earle, House |
| Charles Warrington Earle School |
| Chateau Chevalier |
| Chateau Pacheteau |
Data from United States Park Service and Wikidata
