Look at this
The Empire State Building looked downright spooky with the lights out for Earth Hour
John Lamparski / Getty Images
Every year, iconic buildings around the world turn off their lights for an hour to mark Earth Hour. Now celebrated in some 150 countries, the campaign — which was held Saturday night — aims to raise awareness for local environmental projects and remind people to monitor their own energy usage.
So what did some landmarks look like when plunged into darkness?
Empire State Building: