Earth Hour 2019

The Brandenburg Gate is pictured before Earth Hour in Berlin, March 30, 2019. Picture taken with fish-eye lens.

The Brandenburg Gate is pictured during Earth Hour in Berlin, March 30, 2019. Picture taken with fish-eye lens.

The ancient Parthenon temple is pictured atop the Acropolis hill before Earth Hour in Athens, Greece, March 30, 2019.

The ancient Parthenon temple is pictured atop the Acropolis hill during Earth Hour in Athens, Greece, March 30, 2019.

The Kremlin is seen before the lights are switched off for Earth Hour in Moscow, March 30, 2019.

The Kremlin is seen after the lights are switched off for Earth Hour in Moscow, March 30, 2019.

The Cathedral of Christ the Saviour is seen before the lights are switched off for Earth Hour in Moscow, March 30, 2019.

The Cathedral of Christ the Saviour is seen after the lights are switched off for Earth Hour in Moscow, March 30, 2019.

The UNESCO World Heritage Cologne Cathedral and the Hohenzollern railway bridge along the river Rhine are seen before Earth Hour in Cologne, March 30, 2019.

The UNESCO World Heritage Cologne Cathedral and the Hohenzollern railway bridge along the river Rhine are seen during Earth Hour in Cologne, Germany, March 30, 2019.

The Indian Defense Ministry, Presidential Palace and Home Ministry buildings are pictured before the lights were turned off for Earth Hour in New Delhi, March 30, 2019.

The Indian Defense Ministry, Presidential Palace and Home Ministry buildings are pictured after the lights were turned off for Earth Hour in New Delhi, March 30, 2019.

The hotel "Kazakhstan" is seen before the lights are switched off for Earth Hour in Almaty, Kazakhstan, March 30, 2019.

The hotel "Kazakhstan" is seen after the lights are switched off for Earth Hour in Almaty, Kazakhstan, March 30, 2019.

Stalin's era skyscraper is seen before the lights are switched off for Earth Hour in Moscow, March 30, 2019.

Stalin's era skyscraper is seen after the lights are switched off for Earth Hour in Moscow, March 30, 2019.

The Hungarian parliament building is seen before Earth Hour in Budapest, Hungary, March 30, 2019.

The Hungarian parliament building is seen during Earth Hour in Budapest, Hungary, March 30, 2019.

The Angel de la Independencia monument is pictured before lights were turned off for Earth Hour In Mexico City, March 30, 2019.

The Angel de la Independencia monument is pictured as lights are turned off during Earth Hour In Mexico City, March 30, 2019.