3.23關燈愛地球！關燈一小時夜景還是很美，看地球各地美景就知道

▲溫哥華獅門橋。photo by Darryl Dyck/The Canadian Press/Associated Press.

▲瑞士西雍古堡。photo by Jean-Christophe Bott/Keystone/Associated Press.

▲波蘭華沙文化科學宮。photo by Kacper Pempel/Reuters.

▲柏林布蘭登堡大門。photo by Markus Schreiber/Associated Press.

▲羅馬聖彼德大教堂。photo by Filippo Monteforte/AFP/Getty Images.

▲莫斯科河畔旁的Kotelnicheskaya Embankment。photo by Maxim Shemetov/Reuters.

(後面還有：更多關燈一小時的美景)