| Kvernhuset Ungdomsskole | Kvernhuset Ungdomsskole | Norway, Fredrikstad, Kvernhusveien 1 | 2006-11-09 | 2006-11-13 | 2006 | 1 | |
| Kurhaus (Großer Saal) | Kurhaus (Großer Saal) | Germany, Bad Soden am Taunus | 1963-11-06 | -- | 1963 | 1 | |
| Krajské oblastní divadlo | Krajské oblastní divadlo | Czech Republic, Karlovy Vary | 1956-01-21 | -- | 1956 | 1 | |
| Kath. Pfarrzentrum | Kath. Pfarrzentrum | Germany, Ueberlingen | 1980-03-15 | -- | 1980 | 1 | |
| Kultur Raum im Rosenhof | Kultur Raum im Rosenhof | Germany, Kleines Wiesental, Schwand 8 | 2006-06-27 | -- | 2006 | 1 | |
| Královské zemské České divadlo | Královské zemské České divadlo | Czech Republic, Prague | 1878-04-15 | -- | 1878 | 1 | |
| Kirchgemeindehaus | Kirchgemeindehaus | Switzerland, Balgach, Breitestrasse 6 | 2010-01-02 | -- | 2010 | 1 | |
| Kunsthaus Seelscheid | Kunsthaus Seelscheid | Germany, Neunkirchen-Seelscheid, Bergstraße 41-43 | 2005-03-03 | 2005-03-20 | 2005 | 1 | |
| Kino Kultura | Kino Kultura (Кино Култура) | Macedonia, Skopje, Luj Paster 3 | 2017-12-24 | -- | 2017 | 1 | |
| Korskirken | Korskirken | Norway, Bergen, Vågsbunnen | 2008-02-13 | 2008-02-14 | 2008 | 1 | |
| Keble O'Reilly | Keble O'Reilly Theatre | England, Oxford, Blackhall Road, Oxford, OX1 3PG | 2023-11-09 | 2023-11-11 | 2023 | 1 | |
| Kreeger Theater | Kreeger Theater | United States of America, Washington D.C., 1101 6th St SW | 1986-02-28 | 1986-04-20 | 1986 | 1 | |
| Katedralskolan | Katedralskolan | Sweden, Lund, Stora Södergatan 22 | 2006-10-20 | 2006-10-21 | 2006 | 1 | |
| Kaimscher Konzertsaal | Kaimscher Konzertsaal | Germany, Munich, Türkenstraße 5 | 1896-02-27 | -- | 1896 | 1 | |
| Kamuzu College of Nursing | Kamuzu College of Nursing | Malawi, Lilongwe | 2006-05-26 | -- | 2006 | 1 | |
| Kansai Geijutsuza | Kansai Geijutsuza (Kansai Geijutsuza Studio) | Japan, Osaka | 1958-11-19 | -- | 1958 | 1 | |
| Kilchberg ZH | Kilchberg ZH | Switzerland | 2002-09-13 | -- | 2002 | 1 | |
| Konferenscenter Safiren (Cosmos) | Konferenscenter Safiren (Cosmos) | Sweden, Katrineholm, Drottninggatan 19 | 2010-10-04 | -- | 2010 | 1 | |
| Kabinet múz | Kabinet múz | Czech Republic, Brno, Sukova 553/2 | 2004-02-14 | 2006-03-07 | 2004 | 1 | |
| Kleines Theater am Markt | Kleines Theater am Markt | Germany, Wahlstedt, Waldstraße 16 | 2005-09-30 | -- | 2005 | 1 | |
| Krefeld | Krefeld | Germany, Krefeld | 2002-02-17 | -- | 2002 | 1 | |
| Kurdish Fine Arts Society (کۆمەڵەی هونەرەجوانەکانی کورد) | کۆمەڵەی هونەرەجوانەکانی کورد Kurdish Fine Arts Society (Komelay Hunere Jwanekani Kurd) | Iraq, Sulaymaniyah, Madam Mitterrand | 2013-06-04 | 2014-03-29 | 2013 | 1 | |
| Kulturhuset Ælvespeilet | Kulturhuset Ælvespeilet | Norway, Porsgrunn, Storgata 164 | 2024-09-10 | 2024-09-10 | 2024 | 1 | |
| Kleines Theater Bargteheide | Kleines Theater Bargteheide | Germany, Bargteheide, Hamburger Str. 3 | 2007-02-11 | -- | 2007 | 1 | |
| Kungsör | Kungsör | Sweden, Kungsör | 1993-10-15 | -- | 1993 | 1 | |
| Kulturzentrum Brotfabrik Bonn | Kulturzentrum Brotfabrik Bonn | Germany, Bonn | 2016-05-12 | 2016-10-29 | 2016 | 1 | |
| Kokomo | Kokomo | United States of America, Kokomo | 1903-10-29 | 1903-10-29 | 1903 | 1 | |
| Kultur im Beaulieu | Kultur im Beaulieu | Switzerland, Murten, Prehlstrasse 13 | 2009-01-17 | 2009-02-07 | 2009 | 1 | |
| KCRW | KCRW | United States of America, Santa Monica, Pico Boulevard | 1997-09-07 | -- | 1997 | 1 | |
| Komm. kinoen | Komm. kinoen | Norway, Steinkjer | 1952-03-07 | -- | 1952 | 1 | |
| Kaye Playhouse Hunter College | The Kaye Playhouse Hunter College | United States of America, New York, 695 Park Ave | 1997-10-24 | 1997-10-25 | 1997 | 1 | |
| Keylor Grand | Keylor Grand | United States of America, Walla Walla | 1905-11-27 | 1905-11-27 | 1905 | 1 | |
| Krasnapolsky | Krasnapolsky | Netherlands, Amsterdam | 1938-03-20 | -- | 1938 | 1 | |
| Kongreßhaus Villach | Kongreßhaus Villach | Austria, Villach, Europaplatz 1 | 2001-04-02 | -- | 2001 | 1 | |
| Kispest | Kispest | Hungary, Budapest | 1925-03-13 | -- | 1925 | 1 | |
| Knickerbocker Theatre | Knickerbocker Theatre | United States of America, New York, 1396 Broadway (West 38th Street) | 1905-03-07 | 1905-03- | 1905 | 1 | |
| Kraevoj teatr drami | Kraevoj teatr drami | Russia, Habarovsk | 1955-10- | -- | 1955 | 1 | |
| Kirkebygden Skole | Kirkebygden Skole | Norway, Enebakk, Enebakk | 2005-11-02 | -- | 2005 | 1 | |
| Kinoen, Longyearbyen | Kinoen, Longyearbyen | Norway, Svalbard | 1979-11-04 | -- | 1979 | 1 | |
| Koninklijke Stadsschouwburg | Koninklijke Stadsschouwburg | Belgium, Kortrijk, Schouwburgplein 14 | 1978-11-10 | -- | 1978 | 1 | |
| Kamara Színház | Kamara Színház | Hungary, Szombathely | 1924-07-10 | -- | 1924 | 1 | |
| Kongsberg Musikkteater | Kongsberg Musikkteater | Norway, Kongsberg, Hasbergs vei 36 | 2019-09-17 | 2019-10-11 | 2019 | 1 | |
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