America: Boston's city skyline remains lit during the Earth Hour event in Boston as seen from Cambridge, Massachusetts. EPA
The Philippines: A volunteer arranges lit candles to read 'Fight Covid-19' during Earth Hour near a Catholic church in Borongan City, Eastern Samar province in 2020. AFP
Australia: Before and after the lights were turned off for Earth Hour at the Sydney Harbour Bridge and Opera House. AFP
China: A view of the National Stadium (Bird's Nest) with lights off during Earth Hour in Beijing. EPA
Hong Kong: Before and after the lights were turned off. EPA
Malaysia: The Petronas Twin Towers, left, and Kuala Lumpur Tower, right, stand illuminated before their lights are turned off to mark Earth Hour. AFP
Taiwan: The Taipei 101 Skyscraper is lit up shortly before Earth Hour in Taipei. EPA
Thailand: The skyline of Bangkok is seen after some of its lights are turned off to mark Earth Hour. AFP
Indonesia: Before and during Earth Hour in Jakarta. AFP
Japan: Before and after lights were turned off at Tokyo Tower. AFP
Hungary: These photos show the 'Chain Bridge' in Budapest, illuminated by white lights to honour the efforts of healthcare staff against Covid-19, before and after the city lights were switched off to mark Earth Hour. AFP
Belarus: Shots of the Bolshoi Opera and Ballet Theatre of Belarus with lights on and off in Minsk. EPA
Russia: Moscow's Kremlin with the lights switched on and off to mark Earth Hour. EPA
Austria: The Schoenbrunn Palace with its illumination lights switched on and off. EPA
Switzerland: Lausanne's Cathedral is pictured with lights switched off during Earth Hour. EPA
Poland: The illumination of the Philharmonic M Karlowicz symbolically dimming down, in Szczecin. EPA
Serbia: Belgrade's Saint Sava Temple with lights switched off. EPA
Serbia: Two views of Belgrade's Ada Bridge with its illumination lights switched on and off. EPA
Germany: Brandenburg Gate before and after turning off its illumination lights to mark Earth Hour in Berlin. EPA
America: Boston's city skyline remains lit during the Earth Hour event in Boston as seen from Cambridge, Massachusetts. EPA
The Philippines: A volunteer arranges lit candles to read 'Fight Covid-19' during Earth Hour near a Catholic church in Borongan City, Eastern Samar province in 2020. AFP
Australia: Before and after the lights were turned off for Earth Hour at the Sydney Harbour Bridge and Opera House. AFP
China: A view of the National Stadium (Bird's Nest) with lights off during Earth Hour in Beijing. EPA
Hong Kong: Before and after the lights were turned off. EPA
Malaysia: The Petronas Twin Towers, left, and Kuala Lumpur Tower, right, stand illuminated before their lights are turned off to mark Earth Hour. AFP
Taiwan: The Taipei 101 Skyscraper is lit up shortly before Earth Hour in Taipei. EPA
Thailand: The skyline of Bangkok is seen after some of its lights are turned off to mark Earth Hour. AFP
Indonesia: Before and during Earth Hour in Jakarta. AFP
Japan: Before and after lights were turned off at Tokyo Tower. AFP
Hungary: These photos show the 'Chain Bridge' in Budapest, illuminated by white lights to honour the efforts of healthcare staff against Covid-19, before and after the city lights were switched off to mark Earth Hour. AFP
Belarus: Shots of the Bolshoi Opera and Ballet Theatre of Belarus with lights on and off in Minsk. EPA
Russia: Moscow's Kremlin with the lights switched on and off to mark Earth Hour. EPA
Austria: The Schoenbrunn Palace with its illumination lights switched on and off. EPA
Switzerland: Lausanne's Cathedral is pictured with lights switched off during Earth Hour. EPA
Poland: The illumination of the Philharmonic M Karlowicz symbolically dimming down, in Szczecin. EPA
Serbia: Belgrade's Saint Sava Temple with lights switched off. EPA
Serbia: Two views of Belgrade's Ada Bridge with its illumination lights switched on and off. EPA
Germany: Brandenburg Gate before and after turning off its illumination lights to mark Earth Hour in Berlin. EPA
America: Boston's city skyline remains lit during the Earth Hour event in Boston as seen from Cambridge, Massachusetts. EPA
