| Comberton Village College | Comberton Village College | England, Cambridgeshire, West Street, Comberton | 2017-07-08 | -- | 2017 | 1 | |
| Chiesa di san Nicolò | Chiesa di San Nicolò | Italy, Spoleto | 1982-06-26 | -- | 1982 | 1 | |
| Centro Cultural Virgen Del Carmen | Centro Cultural Virgen Del Carmen | Spain, Alicante, 03182 Torrevieja | 2021-11-21 | 2021-11-21 | 2021 | 1 | |
| CC Staf Versluys | CC Staf Versluys (Meeting- en Eventcentrum) | Belgium, Bredene, Kapelstraat 76 | 2008-01-26 | -- | 2008 | 1 | |
| Centre Culturel de la Région de Mons | Centre Culturel de la Région de Mons | Belgium, Mons, Grand-Place 18 | 1997-04-24 | 1997-04-25 | 1997 | 1 | |
| Casa del Lago Juan José Arreola | Casa del Lago Juan José Arreola | Mexico, México City, D.F. | 2007-05-11 | 2007-05-26 | 2007 | 1 | |
| Castellum Theater | Castellum Theater | Netherlands, Alphen aan Den Rijn, Rijnplein 3 | 2009-11-26 | -- | 2009 | 1 | |
| Cultuurcentrum Belgica | Cultuurcentrum Belgica | Belgium, Dendermonde, Kerkstraat 24 | 1998-11-26 | -- | 1998 | 1 | |
| Centro Cultural de la Villa (Ibi) | Centro Cultural de la Villa (Ibi) | Spain, Ibi | 2005-01-28 | 2005-01-28 | 2005 | 1 | |
| CC De Stringe | CC De Stringe | Belgium, Vichte, Anzegem, Ommersheimplein 5 | 2001-03-13 | 2001-03-13 | 2001 | 1 | |
| Corinthian Theatre | Corinthian Theatre | India, Kolkata, West Bengal | 1891-12-26 | -- | 1891 | 1 | |
| Carson City | Carson City | United States of America, Carson City | 1905-10-24 | -- | 1905 | 1 | |
| Compania Mărioara Voiculescu | Compania Mărioara Voiculescu | Romania, București | 1924-12-21 | 1925-01-07 | 1924 | 1 | |
| Crawfordsville | Crawfordsville | United States of America, Crawfordsville | 1903-10-30 | 1903-10-30 | 1903 | 1 | |
| College of Marin Studio Theatre Performing Arts Building Kentfield Campus | College of Marin Studio Theatre Performing Arts Building Kentfield Campus | United States of America, Kentfield, 15 Laurel Ave, Kentfield, CA 94904, United States | 2023-11-24 | 2023-12-10 | 2023 | 1 | |
| Coliseum | Coliseum | Wales, Aberdare, Mount Pleasant | 2011-05-05 | -- | 2011 | 1 | |
| CMWS Hall Kildare | CMWS Hall Kildare | Ireland | 2019-03-04 | 2019-03-04 | 2019 | 1 | |
| Cole Auditorium | Cole Auditorium (Fine Arts Building) | United States of America, Clarkston, GA 30021, 3759-3773 Memorial College Ave | 2025-02-28 | 2025-03-09 | 2025 | 1 | |
| Cumnock School | Cumnock School | United States of America, Los Angeles | 1911-06-02 | 1911-06-02 | 1911 | 1 | |
| Crescent Theatre | Crescent Theatre | Ireland, Limerick | 1980-02-11 | 1980-02-16 | 1980 | 1 | |
| Clifford E. White Theater, The | The Clifford E. White Theater | United States of America, Flagstaff, 1115 S Knoles Dr | 2022-10-20 | 2022-10-23 | 2022 | 1 | |
| Center for the Arts Theatre | Center for the Arts Theatre | United States of America, Platteville, WI, 755 W Main St, | 2013-10-23 | 2013-10-27 | 2013 | 1 | |
| Carlisle Foyer, Alumni Hall, Springfield College Campus | Carlisle Foyer, Alumni Hall, Springfield College Campus | United States of America, Springfield, 263 Alden Street | 1963-07-16 | 1963-07-20 | 1963 | 1 | |
| Connelly Theatre | Connelly Theatre | United States of America, New York, 220 E 4th St | 2008-09-03 | 2008-09-20 | 2008 | 1 | |
| Centre Culturel André Malraux | Centre Culturel André Malraux | France, Vandoeuvre, Nancy, Rue de Parme | 2000-03-06 | -- | 2000 | 1 | |
| Centro Experimental La Casa Rodante | Centro Experimental La Casa Rodante | Chile, Santiago, Alberto Figueroa 466 | 2012-01-03 | 2012-01-31 | 2012 | 1 | |
| CC De Bosuil | CC De Bosuil | Belgium, Overijse, Witherendreef 1 | 1998-12-15 | -- | 1998 | 1 | |
| Cincinnati Playhouse in the Park | Cincinnati Playhouse in the Park | United States of America, Cincinnati, Mount Adams Circle | 1965-04-07 | -- | 1965 | 1 | |
| Cultuurcentrum 't Vondel | Cultuurcentrum 't Vondel | Belgium, Halle, J. Possozplein 40 | 2002-02-26 | 2002-02-26 | 2002 | 1 | |
| Centro Cultural de Belém (Grande Auditório) | Centro Cultural de Belém (Grande Auditório) | Portugal, Lisbon, Praça do Império | 2009-02-13 | 2009-02-14 | 2009 | 1 | |
| Centralen Voenen Club (Central Military Club) | Centralen Voenen Club (Central Military Club) | Bulgaria, Sofia, 7 Tzar Osvoboditel Blvd. | 2003-01-17 | -- | 2003 | 1 | |
| Charleville | Charleville | France, Charleville | 1993-- | 1994-- | 1993 | 1 | |
| Comunale, Teatro | Teatro Comunale | Italy, Cormons, Via Nazario Sauro, 17 | 2017-01-24 | -- | 2017 | 1 | |
| Cinema Teatro Chiasso | Cinema Teatro Chiasso | Switzerland, Chiasso, Via Dante Alighieri 3b, 6830 | 2012-03-16 | -- | 2012 | 1 | |
| Community Centre, Rathangan, The | The Community Centre, Rathangan | Ireland, Co. Kildare | 2007-03-28 | -- | 2007 | 1 | |
| Colwyn Bay Repertory Theatre | Colwyn Bay Repertory Theatre | Wales, Colwyn Bay | 1943-03-30 | -- | 1943 | 1 | |
| Château de Noirmoutier | Château de Noirmoutier | France, Noirmoutier-en-l'Île, Place d'Armes | 1972-07-17 | 1972-08-06 | 1972 | 1 | |
| Clark Center for the Performing Arts | Clark Center for the Performing Arts | United States of America, Arroyo Grande, 487 Fair Oaks Avenue | 1972-09-30 | 1972-10-09 | 1972 | 1 | |
| Centro Dramático de Ceuta / Instituto Siete Colinas | Centro Dramático de Ceuta / Instituto Siete Colinas | Spain, Ceuta, Barriada Odonnell | 2010-11-12 | 2010-11-20 | 2010 | 1 | |
| Costa Rica | Costa Rica | Costa Rica | 2011-03-05 | 2011-03-10 | 2011 | 1 | |
| Circle Theater Company | Circle Theater Company | United States of America, Manhattan, Broadway and 83rd street | 1973-04-15 | -- | 1973 | 1 | |
| Clarksburg | Clarksburg | United States of America, Clarksburg | 1903-11-25 | 1903-11-25 | 1903 | 1 | |
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