In Pictures: Landmarks switch off lights for Earth Hour

Landmarks across the UK and beyond switched off their lights on Saturday night to mark Earth Hour.

The lights went out at famous buildings between 8.30pm and 9.30pm as part of the international event organised by conservation charity WWF to urge action to save the planet.

Earth Hour 2019
The London Eye and Houses of Parliament (David Parry/PA)
Earth Hour 2019
Dimmed lights at Parliament (David Parry/PA)
Earth Hour 2019
Tower Bridge during the event (PA)
Earth Hour 2019
Piccadilly Circus – before… (Dominic Lipinski/PA)
Earth Hour 2019
… and after (Dominic Lipinski/PA)

More than 7,000 cities in over 170 countries were estimated to take part in this year’s Earth Hour.

Earth Hour Chicago
The Willis Tower in Chicago powered down (Chris Sweda/Chicago Tribune via AP)
Poland Earth Hour
The 14th-century St Mary’s Basilica in Krakow, Poland (Czarek Sokolowski/AP)
Germany Earth Hour
WWF activists set up led lights in front of the blacked-out Brandenburg Gate in Berlin (Markus Schreiber/AP)
India Earth Hour
Mumbai’s historic railway station Chhatrapati Shivaji Maharaj Terminus (Rajanish Kakade/AP)
Greece Earth Hour
The Acropolis hill in Athens (Yorgos Karahalis/AP)