| Concello de Ponteceso | Concello de Ponteceso | Spain, Ponteceso, Rúa Concello 18 | 2024-11-02 | -- | 2024 | 1 | |
| Coliseo | Coliseo | Spain, Salamanca, Calle del doctor Riesco (calle Toro) | 1928-09-15 | 1928-09-21 | 1928 | 1 | |
| Casa de Cultura | Casa de Cultura | Spain, San Lorenzo de El Escorial, C/ Floridablanca 3. | 2005-11-26 | 2005-11-26 | 2005 | 1 | |
| Casa de Cultura de Sangüesa | Casa de Cultura de Sangüesa | Spain, Sangüesa, C. Alfonso el Batallador, 20 | 2009-12-12 | 2009-12-12 | 2009 | 1 | |
| Centro Dramático Galego | Centro Dramático Galego | Spain, Santiago de Compostela, Salón Teatro. Rúa Nova, 34. | 2002-03-01 | 2002-04-09 | 2002 | 1 | |
| Centro Cultural Palacio de la Audiencia | Centro Cultural Palacio de la Audiencia | Spain, Soria, C/ Plaza Mayor, 7 | 2005-02-10 | 2017-03-30 | 2005–2017 | 2 | |
| Casal | El Casal | Spain, Tàrrega | 1993-09-11 | 1993-09-11 | 1993 | 1 | |
| Casa de Cultura de Tobarra | Casa de Cultura de Tobarra | Spain, Tobarra, Albacete, Av. Juan Carlos I, 16 | 1993-01-02 | -- | 1993 | 1 | |
| Casa de Cultura de Villava | Casa de Cultura de Villava | Spain, Villava, C. Mayor, 38 | 2009-03-29 | 2010-09-29 | 2009 | 1 | |
| Centro Cívico Teodoro Sánchez Punter | Centro Cívico Teodoro Sánchez Punter | Spain, Zaragoza, Plaza Mayor, 3 | 2014-11-27 | 2014-11-28 | 2014 | 1 | |
| Casa de Cultura de Zizur Mayor | Casa de Cultura de Zizur Mayor | Spain, Zizur Mayor, Erreniega Parkea, 25 | 2009-04-03 | 2009-04-03 | 2009 | 1 | |
| Colombo | Colombo | Sri Lanka, Colombo | 1891-12-01 | -- | 1891 | 1 | |
| Cirkusteatern | Cirkusteatern | Sweden, Göteborg | 1914-11-20 | 1914-11-29 | 1914 | 1 | |
| Cylindahallen | Cylindahallen | Sweden, Vara, Vara Torsgården | 2006-11-04 | -- | 2006 | 1 | |
| Casino-Theater | Casino-Theater | Switzerland, Burgdorf, Kirchbühl 14 | 2008-02-07 | 2016-03-17 | 2008–2019 | 5 | |
| Cinema Teatro Chiasso | Cinema Teatro Chiasso | Switzerland, Chiasso, Via Dante Alighieri 3b, 6830 | 2012-03-16 | -- | 2012 | 1 | |
| Chur | Chur | Switzerland, Chur | 2003-01-30 | -- | 2003 | 1 | |
| Curhaus-Theater Davos | Curhaus-Theater Davos | Switzerland, Davos | 1905-04-12 | -- | 1905 | 1 | |
| Casino-Theater | Casino-Theater | Switzerland, Frauenfeld | 1980-03-05 | -- | 1980–2019 | 3 | |
| Comédie de Genève, La | La Comédie de Genève | Switzerland, Geneva, Boulevard des Philosophes 6 | 1915-11-16 | 2005-03-20 | 1915–2005 | 7 | |
| Casino Théâtre | Casino Théâtre | Switzerland, Geneva, Rue de Carouge 42 | 2000-05-23 | 2000-05-27 | 2000 | 1 | |
| Centre de culture ABC | Centre de culture ABC | Switzerland, La Chaux-de-Fonds, Rue du Coq 11 | 2018-11-22 | 2018-11-25 | 2018 | 1 | |
| Casino de Montbenon, Le | Le Casino de Montbenon | Switzerland, Lausanne, Allée Ernest-Ansermet 3 | 2008-09-10 | 2008-09-13 | 2008 | 1 | |
| Casino Du Brassus | Casino Du Brassus | Switzerland, Le Chenit, Route de France 2 | 2018-11-25 | -- | 2018 | 1 | |
| Crochetan, Théâtre du | Théâtre du Crochetan | Switzerland, Monthey, Avenue du Théâtre 9 | 2014-04-11 | -- | 2014 | 1 | |
| Culture and Congress Centre La Poste | Culture and Congress Centre La Poste | Switzerland, Visp, La Poste-Platz 4 Visp | 2021-11-16 | 2021-11-16 | 2021 | 1 | |
| Chulalongkorn University | Chulalongkorn University | Thailand, Bangkok, 254 Phayathai Road | 2005-06- | -- | 2005 | 1 | |
| Caddebostan Cultural Center (CKM) | Caddebostan Cultural Center (CKM) | Turkey, Istanbul, Caddebostan, Haldun Taner Sk. No:11, 34728 | 2023-11-08 | 2023-11-30 | 2023 | 1 | |
| Cernăuţi | Cernăuţi | Ukraine, Cernăuţi | -- | -- | | | |
| Cinema Kiev | Cinema Kiev | Ukraine, Kiev, str. Chervonoarmiyska, 19 | 2017-11-07 | 2017-11-07 | 2017 | 1 | |
| Colonial Theatre | Colonial Theatre | United States of America, Akron | 1903-04-13 | 1903-04-13 | 1903 | 1 | |
| Capital Repertory Theatre | Capital Repertory Theatre | United States of America, Albany, 111 N Pearl St | 2000-02-04 | 2000-02-27 | 2000 | 1 | |
| Clark Street Playhouse | Clark Street Playhouse | United States of America, Arlington, 601 S Clark St | 2008-02-07 | 2008-03-09 | 2008 | 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 | |
| Center Square Theatre | Center Square Theatre | United States of America, Ashland, Southern Oregon University, 1250 Siskiyou Blvd | 2006-05-11 | 2008-11-16 | 2006–2008 | 2 | |
| Cable Hall | Cable Hall | United States of America, Atlanta | 1914-04-02 | 1914-04-02 | 1914 | 1 | |
| College Community Center Theatre | College Community Center Theatre | United States of America, Baltimore | 2013-10-17 | 2013-10-22 | 2013 | 1 | |
| Center Stage | Center Stage | United States of America, Baltimore, 700 N Calvert St | 1988-03-04 | 2012-10-21 | 1988–2012 | 2 | |
| Crossroads Charter Academy Auditorium | Crossroads Charter Academy Auditorium | United States of America, Big Rapids, MI | 2025-04-10 | 2025-04-13 | 2025 | 1 | |
| Civic Centre Bismarck | Civic Centre Bismarck | United States of America, Bismarck | 1914-05-04 | 1914-05-04 | 1914 | 1 | |
| Carlo Theatre | Carlo Theatre | United States of America, Blue Lake, 131 H St. | 2005-11-25 | 2006-09-09 | 2005–2006 | 3 | |
| Chickering Hall | Chickering Hall | United States of America, Boston | 1891-04-09 | 1891-04-09 | 1891 | 1 | |
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