Ostróg | Ostróg | Poland, Ostróg | -- | -- | | | |
Ocna Sibiului | Ocna Sibiului | Romania, Ocna Sibiului | -- | -- | | | |
Odder | Odder | Denmark, Odder | -- | -- | | | |
Odessa | Одеса (Odessa) | Ukraine, Odessa | -- | -- | | | |
Ogra | Ogra | Romania, Ogra | -- | -- | | | |
Ohgawara | Ohgawara | Japan, Ohgawara | -- | -- | | | |
Ornö | Ornö | Sweden, Ornö | -- | -- | | | |
Osimo | Osimo | Italy | -- | -- | | | |
Opole | Opole | Poland, Opole | -- | -- | | | |
Oppdal | Oppdal | Norway, Oppdal | -- | -- | | | |
Opera House | Opera House | United States of America, Wyoming, Wyoming | -- | -- | | | |
Opera House | Opera House | United States of America, Telluride | -- | -- | | | |
Olivenza | Olivenza | Spain, Olivenza | -- | -- | | | |
Oituz | Oituz | Romania, Oituz | -- | -- | | | |
Oravice | Oravice | Slovak Republic, Oravice | -- | -- | | | |
Oranienburg | Oranienburg | Germany, Oranienburg | -- | -- | | | |
Oulu | Oulu | Finland, Oulu | -- | -- | | | |
Ornans | Ornans | France, Ornans | -- | -- | | | |
Obârşia | Obârşia | Romania, Obârşia | -- | -- | | | |
Oddfellows' Hall | Oddfellows' Hall | Australia, Wagga Wagga, Fitzmaurice Street | -- | -- | | | |
Ottawa Little Theatre Group | Ottawa Little Theatre Group | Canada, Ottawa | 1945-12-20 | -- | 1945 | 1 | |
OC Vondel (Ontmoetingscentrum Meulebeke) | OC Vondel (Ontmoetingscentrum Meulebeke) | Belgium, Meulebeke, Karel van Manderstraat 26 | 2002-02-28 | 2002-02-28 | 2002 | 1 | |
Ocean Hotell | Ocean Hotell | Norway, Horten, Jernbanegata 1 | 2006-02-02 | -- | 2006 | 1 | |
Opera Națională București | Opera Națională București | Romania, Bucharest, Bulevardul Mihail Kogălniceanu 70-72 | 2007-05-09 | -- | 2007 | 1 | |
Otto-Klenert-Schule | Otto-Klenert-Schule | Germany, Bad Friedrichshall, Rathausplatz 7 | 2006-02-18 | -- | 2006 | 1 | |
Olathe Opera House | Olathe Opera House | United States of America, Olathe | 1908-01-31 | 1908-01-31 | 1908 | 1 | |
Optima Playhouse | Optima Playhouse | Australia, Adelaide, Festival Drive | 1999-07-06 | 1999-07-24 | 1999 | 1 | |
Opéra National de Lyon | Opéra National de Lyon | France, Lyon, 1 place de la Comédie | 2022-06-04 | 2022-06-13 | 2022 | 1 | |
Opera House | Opera House | England, Coventry, 4 Hales Street | 1911-09-11 | 1911-09-14 | 1911 | 1 | |
Opernhaus | Opernhaus | Germany, Essen | 1942-04-19 | -- | 1942 | 1 | |
OSCO - Open Space Hannover | OSCO - Open Space Hannover | Germany, Hannover, Fössestraße 103 | 2019-11-14 | 2019-11-17 | 2019 | 1 | |
Opéra National de Lorraine | Opéra National de Lorraine | France, Nancy, 1 Rue Sainte-Catherine, | 2013-05-23 | -- | 2013 | 1 | |
Oda Tiyatrosu | Atatürk Kültür Merkezi Oda Tiyatrosu (AKM Oda Tiyatrosu) | Turkey, Istanbul, Gümüşsuyu Mahallesi, Tak-ı Zafer Cd., Beyoğlu | 1975-- | 1976-- | 1975 | 1 | |
O'Connell Theatre | O'Connell Theatre | United States of America, Dekalb, Stevens Building, School of Theatre and Dance Northern Illinois University | 2009-02-19 | 2009-03-01 | 2009 | 1 | |
Old globe theatre, the | The Old Globe Theatre | United States of America, San Diego, 1363 Old Globe Way | 1995-04-30 | 1995-06-18 | 1995 | 1 | |
Oblastnoj teatr dramy | Oblastnoj teatr dramy | Russia, Novosibirsk, Bol'shevistskaya Ulitsa, 45 | 1987-11- | -- | 1987 | 1 | |
Ostersund | Ostersund | Sweden, Ostersund | 1936-10-30 | -- | 1936 | 1 | |
OC De Buiting | OC De Buiting (Cultuur, gemeenschaps of ontmoetingscentrum) | Belgium, Beringen, Tessenderlosesteenweg 18 | 2007-11-29 | 2007-11-30 | 2007 | 1 | |
Opera House | Opera House | United States of America, San Juan | 1905-05-06 | 1905-05-06 | 1905 | 1 | |
Oranjerie | Oranjerie | Netherlands, Roermond, Kloosterwandplein 12-16 | 2009-11-07 | -- | 2009 | 1 | |
ONYX - Théâtre de Saint-Herblain | ONYX - Théâtre de Saint-Herblain | France, Saint-Herblain, 1 Place Océane | 2014-01-31 | -- | 2014 | 1 | |
Oscarshall | Oscarshall | Norway, Oslo, Oscarshallveien | 2017-08-28 | 2017-11-28 | 2017 | 1 | |
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