Colorado - Role: Building
| Brush, Jared L., Barn |
| Bryant-Webster Elementary School |
| Buchan Cabin |
| Buchtel Bungalow |
| Buckeye School |
| Buena Vista Ranger Station |
| Building 710, Defense Civil Preparedness Agency, Region 6 Operations Center |
| Building at 1389 Stuart Street |
| Building at 1390 Stuart Street |
| Building at 1435 Stuart Street |
| Building at 1444 Stuart Street |
| Building at 1471 Stuart Street |
| Bunce School |
| Burgess House |
| Burlington Gymnasium |
| Burlington Hotel |
| Burlington State Armory |
| Butters, Alfred, House |
| Byers-Evans House |
| Calhan Rock Island Railroad Depot |
| Callahan, Matthew, Log Cabin |
| Callahan, T. M., House |
| Calvary Episcopal Church |
| Campbell, Richard Crawford, House |
| Canon City Municipal Building |
| Canon City State Armory |
| Canyon (Canon) Creek School, District No. 32 |
| Capilla de San Isidro |
| Capilla de San Juan Bautista |
| Capilla de Viejo San Acacio |
| Capitol Life Insurance Building |
| Cardinal Mill |
| Carlile, James N., House |
| Carnegie Library |
| Carnegie Library |
| Carnegie Public Library |
| Carnegie Public Library |
| Carter-Rice Building |
| Cascade Boy Scout Camp |
| Castle Rock Depot |
| Castle Rock Elementary School |
| Cathedral of the Immaculate Conception |
| Cayton Guard Station |
| CB&Q Denver Shops Powerhouse |
| Central City Opera House |
| Central High School |
| Central Junior High School-Keating Junior High School |
| Central Platoon School |
| Central Presbyterian Church |
| Central School Auditorium and Gymnasium |
| Chadbourn Spanish Gospel Mission |
| Chaffee County Courthouse and Jail Buildings |
| Chaffee County Poor Farm |
| Chama Sociedad Proteccion Mutua de Trabajadores Unidos (SPMDTU) Lodge Hall |
| Chamberlin Observatory |
| Chamber of Commerce Building |
| Chamber of Commerce Building |
| Chambers Ranch |
| Chapel No. 1 |
| Chappell, Delos Allen, House |
| Chasteen's Grove |
| Chateau, The |
| Chautauqua Auditorium |
| Cheesman Park Duplex |
| Cheyenne County Courthouse |
| Cheyenne County Jail |
| Christ Episcopal Church |
| Christian Science Society Building |
| Christ Methodist Episcopal Church |
| Church of St. Philip-in-the-Field and Bear Canon Cemetery |
| Church of the Brethren |
| Citizens National Bank Building |
| City Hall of Colorado City |
| Claremont |
| Clatworthy Place |
| Clements Rowhouse |
| Cliff House |
| Cliff Theater |
| Clifton Community Center and Church |
| Clubhouse-Student Union |
| Coal Creek School |
| Coates Creek Schoolhouse |
| Colburn Hotel |
| Collins Block-Aspen Lumber and Supply |
| Colorado and Southern Railway Depot |
| Colorado Building |
| Colorado Governor's Mansion |
| Colorado National Bank Building |
| Colorado National Guard Armory |
| Colorado Salt Works |
| Colorado Sanitary Canning Factory |
| Colorado Springs City Auditorium |
| Colorado Springs City Hall |
| Colorado Springs Day Nursery |
| Colorado Springs Fine Arts Center |
| Colorado Springs Public Library-Carnegie Building |
| Colorado State Capitol Annex Building and Boiler Plant |
| Colorado State Hospital Superintendent's House |
| Colorado Ute Power Plant |
| Colorado Women's Prison |
Data from United States Park Service and Wikidata
