Earth Hour: Lights off to preserve the planet's environment
The world's most famous landmarks are plunged into darkness for one hour every year.
The global Earth Hour campaign raises awareness about the impacts of climate change. It started in Australia in 2007 and is now observed by participants in 187 countries, according to organisers.
Here are some major sites across the globe that dimmed their lights on Saturday 24 March 2018.
Sydney, Australia - Harbour Bridge and Opera House
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During

Beijing, China - National Stadium (the "Bird's Nest")
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Kuala Lumpur, Malaysia - Petronas Towers
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Taipei, Taiwan - Taipei 101
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Singapore - Supertrees at Gardens by the Bay
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New Delhi, India - India Gate
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Moscow, Russia - Christ the Saviour Cathedral
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Rome, Italy - Colosseum
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Athens, Greece - Parthenon temple
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