World landmarks turn off the lights for Earth Hour 2014

World landmarks turn off the lights for Earth Hour 2014.

The Turtle Tower on Hoan Kiem lake before (top) and during Earth Hour in Hanoi March 29, 2014.

The Brandenburg Gate submerging into darkness during the Earth Hour environmental campaign in March 29, 2014 in Berlin.

The UNESCO World Heritage Cologne Cathedral and the Hohenzollern railway bridge along the river Rhine, are seen during and before (top) Earth Hour.

This combination of pictures shows the monument to Belarus humanist Francysk Skaryna and the National library (R) submerging into darkness for the Earth Hour environmental campaign in central Minsk on March 29, 2014.

The monument to Belarus humanist Francysk Skaryna and the National library (R) submerging into darkness for the Earth Hour environmental campaign in central Minsk on March 29, 2014.

This combo picture shows the GUM department store at the Red Square submerging into darkness for the Earth Hour environmental campaign in central Moscow on March 29, 2014.

The GUM department store at the Red Square submerging into darkness for the Earth Hour environmental campaign in central Moscow on March 29, 2014.

The Kremlin before (top) and during Earth Hour in Moscow March 29, 2014.

The Old Bridge before (top) and during Earth Hour in Mostar March 29, 2014.

St. Basil's Cathedral before (R) and during Earth Hour in Moscow March 29, 2014.

This combo picture shows Yokohama city's landmarks Landmark Tower (L) and a Ferris wheel (R) being submerged into darkness for the Earth Hour environmental campaign in Yokohama, suburban Tokyo on March 29, 2014

Yokohama city's landmarks Landmark Tower (L) and a Ferris wheel (R) being submerged into darkness for the Earth Hour environmental campaign in Yokohama, suburban Tokyo on March 29, 2014

The Sydney Harbour Bridge is plunged into darkness for the Earth Hour environmental campaign, among the first landmarks around the world to dim their lights for the event, on March 29, 2014.

The Sydney Harbour Bridge is plunged into darkness for the Earth Hour environmental campaign on March 29, 2014.

A combination picture shows Kowloon peninsula, with Hong Kong's highest skyscraper International Commerce Centre, across the harbour before (top) and during Earth Hour March 29, 2014.

Kowloon peninsula, with Hong Kong's highest skyscraper International Commerce Centre, across the harbour before (top) and during Earth Hour March 29, 2014.

This combination image of two photographs shows the landmark Taipei 101 building before (L) and after (R) its lights were turned off in observation of Earth Hour in Taipei on March 29, 2014.

The landmark Taipei 101 building before (L) and after (R) its lights were turned off in observation of Earth Hour in Taipei on March 29, 2014.

A combination photo shows people walking past the skyscrapers Shanghai World Financial Center, Shanghai Tower and Jin Mao Tower (L-R) before (top) and during Earth Hour at the financial district of Pudong in Shanghai March 29, 2014.

People walking past the skyscrapers Shanghai World Financial Center, Shanghai Tower and Jin Mao Tower (L-R) before (top) and during Earth Hour at the financial district of Pudong in Shanghai March 29, 2014.

A combination of two pictures shows the Petronas towers in Kuala Lumpur before and after the lights were switched off for earth hour on March 29, 2014

The Petronas towers in Kuala Lumpur before and after the lights were switched off for earth hour on March 29, 2014

The Sydney Harbour Bridge is seen plunged into darkness for the Earth Hour environmental campaign, among the first landmarks around the world to dim their lights for the event, on March 29, 2014.

The Sydney Harbour Bridge is seen plunged into darkness for the Earth Hour environmental campaign on March 29, 2014.

This combination picture of two photographs show the Wat Arun Ratchawararam Ratchawaramahawihan Buddhist temple before (top) and after (bottom) its lights were turned off to mark Earth Hour in Bangkok on March 29, 2014.

The Wat Arun Ratchawararam Ratchawaramahawihan Buddhist temple before (top) and after (bottom) its lights were turned off to mark Earth Hour in Bangkok on March 29, 2014.

India's presidential palace Rashtrapati Bhavan before (bottom) and during Earth Hour in New Delhi March 29, 2014.

The National Stadium, also known as the "Bird's Nest", reflected in a lake before (top) and during Earth Hour at the Olympic Park in Beijing, March 29, 2014

The Brandenburg Gate submerging into darkness during the Earth Hour environmental campaign in March 29, 2014 in Berlin.

(Source: Torontosun)