In this two-picture combo, the Trevi fountain is seen at left with its light on, and at right with its lights off, on the occasion of the 10th annual Earth Hour, in Rome, Saturday, March 19, 2016. In several Italian cities officials switched off lights normally illuminating major monuments in a global movement dedicated to protecting the planet and highlighting the effects of climate change. (Photo by Giorgio Onorati/ANSA via AP Photo)
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