PHOTO GALLERY: Lights turned off around the world to mark 10th Earth Hour

Multimedia

A traditional Chinese junk sails in Victoria Harbour in front of the skyline after the building lights were switched off for the Earth Hour environmental campaign in Hong Kong on March 25, 2017. (AFP)

People take photographs as a traditional Chinese junk sails in Victoria Harbour in front of the skyline after the building lights were switched off for the Earth Hour environmental campaign in Hong Kong on March 25, 2017. (AFP)

The area around Selamat Datang Monument, also referred to as the Bunderan HI roundabout, is pictured after the lights were switched off for Earth Hour in Jakarta, Indonesia March 25, 2017. (Reuters)

The State Opera house (Staatsoper) is seen after the lights were switched off for Earth Hour in Vienna, Austria, March 25, 2017. (Reuters)

The State Opera house (Staatsoper) is seen before the lights were switched off for Earth Hour in Vienna, Austria, March 25, 2017. (Reuters)

Belvedere palace and its reflection in a pond are seen during the lights were switched off for Earth Hour in Vienna, Austria, March 25, 2017. (Reuters)

People stand in front of the Eiffel Tower before the lights being switched off during the Earth Hour in Paris on March 25, 2017.
Earth Hour is a global call to turn off lights for one hour in a bid to highlight the global climate change. (AFP)

Belvedere palace and its reflection in a pond are seen before the lights were switched off for Earth Hour in Vienna, Austria, March 25, 2017. (Reuters)

Earth Hour is marked around the world, with millions expected turn out the lights to raise awareness about climate change. (AP)

Earth Hour takes place worldwide and is a global call to turn off lights for 60 minutes in a bid to highlight the global climate change. (AP)

A view shows the St. Basil's Cathedral (L) and the Kremlin wall, before the lights were switched off for Earth Hour in Red Square in central Moscow, Russia, March 25, 2017. (Reuters)

A general view shows the skyline after the building lights were switched off for the Earth Hour environmental campaign in Hong Kong on March 25, 2017. (AFP)

Among the famous buildings and structures taking part in Australia are Sydney's Opera House, the Harbour Bridge, Luna Park, Town Hall, and Sydney Tower Eye.

Internationally the list includes some of the world's best known sky-scrapers and historic buildings including the world's tallest building, the Burj Khalifa in Dubai, London's Big Ben and Houses of Parliament, the Colosseum in Rome, Istanbul's Blue Mosque, the Eiffel Tower, Moscow's Kremlin and Red Square and the Pyramids of Egypt.