All - Architectural style - Beaux-Arts
| Campbell, Richard Crawford, House |
| Canadian Embassy |
| Candler Building |
| Carlton Hotel |
| Carnegie, Andrew, Free Library |
| Carnegie Building of the Fletcher Free Library |
| Carnegie Free Public Library (DAOB 41) |
| Carnegie Institute and Library |
| Carnegie Library |
| Carnegie Library |
| Carnegie Public Library |
| Carnegie Public Library |
| Carnegie Public Library |
| Carnegie-Stout Public Library |
| Carolands, The |
| Carroll County Courthouse |
| Cary Building |
| Casa Franceschi Antongiorgi |
| Case Memorial-Seymour Library |
| Casino Theatre |
| Cecil Apartments |
| Central Bank and Trust Co. |
| Central Fire Station |
| Central Fire Station |
| Central Library |
| Central Public Library |
| Central Technical High School |
| Central Trust Company Building |
| Centro Asturiano |
| Century Building |
| Century Building and Syndicate Trust Building |
| Chamberlin Hotel |
| Chamber of Commerce |
| Chamber of Commerce Building |
| Chambord Apartments |
| Champlain Apartment Building |
| Chase's Theater and Riggs Building |
| Cherry Hotel |
| Chesapeake and Ohio Depot |
| Chester Waterside Station of the Philadelphia Electric Company |
| Chippewa Trust Company Building |
| Church of St Mary's-Catholic |
| Church of Sts. Peter and Paul-Catholic |
| Citizen's and Southern Bank Building |
| Citizens Bank of Lafourche |
| Citizens National Life Insurance Building |
| Citizens Publishing Company Building |
| Citizens State Bank |
| City Hall |
| City Hall |
| City of Paris Building |
| Civic Club |
| Class and Nachod Brewery |
| Clay County Courthouse |
| Cleveland Trust Company |
| Cobb Building |
| Cohn, Emile, House |
| Commercial Banking & Trust Co. |
| Congressional Club |
| Continental Trust Company Building |
| Cook County Hospital Administration Building |
| Cooke County Courthouse |
| Cooper, Frank B., Elementary School |
| Cooper, Madison, House |
| Coos Bay National Bank Building |
| Cortland County Courthouse |
| Cosmos Club |
| Council Bluffs Free Public Library |
| Cowell Memorial Hospital |
| Crawford County Courthouse |
| Crescent Hill Branch Library |
| Crow Wing County Courthouse and Jail |
| Cutler Memorial Library |
| Dallas Scottish Rite Temple |
| Dallas Union Terminal |
| Dalles Carnegie Library |
| Dalton Theatre Building |
| Darnell, Rowland J., House |
| Dawson County Courthouse |
| Dayton Daily News Building |
| Dearborn School |
| DeLamar Mansion |
| Demopolis Public School |
| Dennis Hotel |
| DeSoto Parish Courthouse |
| Detroit Cornice and Slate Company Building |
| Dickey County Courthouse |
| Dickinson (Carnegie Area) Public Library |
| Dillon Building |
| Dimeling Hotel |
| District Building |
| Divide County Courthouse |
| Dollar Savings Bank |
| Drinkhall, The |
| Duke Residence |
| Duluth Masonic Temple |
| Eagle Grove Public Library |
| Eagle's Lodge #132 |
| East Ohio Gas Company Building |
| Eau Claire Public Library |
Data from United States Park Service and Wikidata