• The UNESCO World Heritage Cologne Cathedral and the Hohenzollern railway bridge along the river Rhine, are seen during and before Earth Hour. Ina Fassbender / Reuters
    The UNESCO World Heritage Cologne Cathedral and the Hohenzollern railway bridge along the river Rhine, are seen during and before Earth Hour. Ina Fassbender / Reuters
  • The combo picture shows activists of World Wide Fund (WWF) posing in front of the Brandenburg Gate during the Earth Hour environmental campaign in Berlin. Johannes Eisele / AFP
    The combo picture shows activists of World Wide Fund (WWF) posing in front of the Brandenburg Gate during the Earth Hour environmental campaign in Berlin. Johannes Eisele / AFP
  • A composite picture of Alhambra palace before and after its lighting was turned off during the celebration of Earth Hour in Granada city, Andalusia region, southern Spain. Jesus Ochando / EPA
    A composite picture of Alhambra palace before and after its lighting was turned off during the celebration of Earth Hour in Granada city, Andalusia region, southern Spain. Jesus Ochando / EPA
  • This combination of pictures shows the Serbian National Assembly building in Belgrade before and after submerging into darkness for the Earth Hour switch-off environmental campaign. Andrej Isakovic / AFP
    This combination of pictures shows the Serbian National Assembly building in Belgrade before and after submerging into darkness for the Earth Hour switch-off environmental campaign. Andrej Isakovic / AFP

In pictures: Earth Hour 2014


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Composite photos of the world’s iconic buildings illuminated and dinned during Earth Hour 2014.