New York - Role: Building
| Capitol Theater |
| Cargill House |
| Carley's Mills Schoolhouse |
| Carll, Ezra, Homestead |
| Carll House |
| Carll House |
| Carll, Marion, Farm |
| Carman, Cornelius, House |
| Carnegie, Andrew, Mansion |
| Carnegie Hall |
| Carnegie Library |
| Carner, John Jr., House |
| Carpenter, John B., House |
| Carrington House |
| Carr, John, House |
| Carter, John, Farmstead |
| Carter Street Schoolhouse No. 21 |
| Carvey-Gatfield House |
| Cary Building |
| Casa Amadeo, antigua Casa Hernandez |
| Casa Italina |
| Cascadilla School Boathouse |
| Case, James H., III and Laura Rockefeller Case, House |
| Casemate Fort, Whiting Quadrangle |
| Case Memorial-Seymour Library |
| Cash-Draper House |
| Casita Rincón Criollo |
| Caspar Getman Farmstead |
| Castle Williams |
| Cathedral of All Saints |
| Cathedral of the Immaculate Conception |
| Catholic Central High School |
| Cattaraugus County Memorial and Historical Building |
| Catt, Carrie Chapman, House |
| Cauldwell, William, House |
| Cayuga County Courthouse and Clerk's Office |
| Cayuga Preventorium |
| C. Burton Hotel |
| Cedarcliff Gatehouse |
| Cedar Island Lighthouse |
| Cedar Lake Methodist Episcopal Church |
| Center Theatre |
| Centerville Town Hall |
| Central Fire Station |
| Central Garage |
| Central Hall |
| Central New York Telephone and Telegraph Building |
| Central Powerhouse |
| Central Savings Bank |
| Central School |
| Central Synagogue |
| Central Technical High School |
| Central Trust Bank Building |
| Centre Presbyterian Church |
| Century Association Building |
| Century Building |
| Ceres School |
| Cerny's Bakery |
| Chadwick Farmhouse |
| Chalmers Knitting Mills |
| Chamberlain, Benjamin, House |
| Chamberlain, Daniel, House |
| Chamber of Commerce |
| Chamber of Commerce Building |
| Champlin, H. D., & Son Horseshoeing and Wagonmaking |
| Chandler, Peter, House |
| Chanin Building |
| Chapel and Cultural Center |
| Chapel Hill Bible Church |
| Chapel House |
| Chapel of Our Lady Help of Christians |
| Chapel of the Good Shepherd |
| Chapel of the Intercession Complex and Trinity Cemetery |
| Chapin Memorial Church |
| Chapin, Thaddeus, House |
| Chapman, A. F., House |
| Chapman Farmhouse |
| Chapman House |
| Chappaqua Railroad Depot and Depot Plaza |
| Chappell Farmhouse |
| Charles D. & Elizabeth Lantry House |
| Charles Street House at No. 131 |
| Chase Cobblestone Farmhouse |
| Chase-Crowley-Keep House |
| Chase-Hubbard-Williams House |
| Chase Mills Inn |
| Chase, William Merritt, Homestead |
| Chatham Street Row |
| Chaumont Grange Hall and Dairymen's League Building |
| Chaumont House |
| Chaumont Railroad Station |
| Checkerboard Inn |
| Chelsea Grammar School |
| Chemung Canal Bank Building |
| Chemung District School No. 10 |
| Chemung Railway Depot-Horseheads |
| Cherry Grove Community House and Theatre |
| Cherry Hill |
| Chetolah |
| Chevalier, Xavier, House |
Data from United States Park Service and Wikidata
