Pennsylvania - Role: Building
| Carroll, Charles, Public School |
| Carson, Rachel, House |
| Carter-Worth House and Farm |
| Cashier's House |
| Cassese, Joseph, House |
| Cassidy, Lewis C., School |
| Catawissa Friends Meetinghouse |
| Catharine, Joseph W., School |
| Cathedral of Learning |
| Cathedral of Saints Peter and Paul |
| Catlin Hall, Wilkes College |
| Cedarcroft |
| Centennial National Bank |
| Central High School |
| Central Hotel |
| Central Market |
| Central Railroad of New Jersey Freight Station |
| Central Railroad of New Jersey Station |
| Central Railroad of New Jersey Station |
| Central Trust Company Buildings |
| Centre Avenue YMCA |
| Centre County Courthouse |
| Centre Furnace Mansion House |
| Centre Mills |
| Century Building |
| Century Club of Scranton |
| Chad House |
| Chalybeate Springs Hotel |
| Chamberlain-Pennell House |
| Chamberlin Iron Front Building |
| Chambersburg and Bedford Turnpike Road Company Toll House |
| Chamounix |
| Chandler, George, School |
| Chanticleer |
| Chapman, John, House |
| Chateau Crillon Apartment House |
| Chester County Courthouse |
| Chester Waterside Station of the Philadelphia Electric Company |
| Chestnut Hill |
| Chestnut Ridge and Schellsburg Union Church and Cemetery |
| Chestnut Street Log House |
| Cheyney, John, Log Tenant House and Farm |
| Chichester Friends Meetinghouse |
| Childs, George W., School |
| Christ Church |
| Christman, Philip, House |
| Church Hill Farm |
| Church of St. James the Less |
| Church of the Holy Trinity |
| Cintra |
| Citizens National Bank of Latrobe |
| City Hall |
| City Park Brewery |
| Clarion County Courthouse and Jail |
| Clark, Sen. Joseph O., House |
| Clarkâs Ferry Tavern |
| Clark, Silas M., House |
| Clarkson-Watson House |
| Class and Nachod Brewery |
| Clearfield Armory |
| Clearfield County Courthouse |
| Clear Spring Mill |
| Cliffs, The |
| Cline's Church of the United Brethren in Christ |
| Clinger-Moses Mill Complex |
| Cliveden (Chew House) |
| Cloud Home |
| Clow, James Beach, House |
| Coates, Moses, Jr., Farm |
| Cochran, Philip G., Memorial United Methodist Church |
| Coffee Pot, The |
| Coffeetown Grist Mill |
| Coldbrook Farm |
| Cold Spring Farm |
| Cold Spring Farm Springhouse |
| Colebrook Iron Master's House |
| Colebrook Manor |
| Colerain Forges Mansion |
| Cole, Warren Z., House |
| Colfax Elementary School |
| College Hall, University Of Pennsylvania |
| College of Physicians of Philadelphia Building |
| Collen Brook Farm |
| Colley, Abel, Tavern |
| Colley, Peter, Tavern and Barn |
| Collins Mansion |
| Colonial National Bank Building |
| Colonial Theatre |
| Coltrane, John, House |
| Columbia Wagon Works |
| Colver-Rogers Farmstead |
| Comerford Theater |
| Comly, Watson, School |
| Commandant's Quarters |
| Commercial Hotel |
| Como Farm |
| Compass Inn |
| Concord Friends Meetinghouse |
| Concord School |
| Conestoga Cork Works Building |
Data from United States Park Service and Wikidata
