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  New York City’s Empire State Building is seen lit up before Earth Hour in 2011

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  View of Paris, France, with the Eiffel Tower, taken from Notre-Dame Cathedral

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  Male and female lions at sunrise, Naboisho Conservancy, Narok County, Kenya

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  Bear cubs playing by a lake

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  Satellite view of Saskatchewan River Delta, Manitoba, Canada

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  Books by Hans Christian Andersen

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  Milky Way over the Bisti/De-Na-Zin Wilderness in New Mexico

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  For Earth Month, a symmetrical forest known as a Nelder plot

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  Cape Disappointment Lighthouse located on Columbia River at sunset, Ilwaco, Washington, USA

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  Blossoming cherry trees at a tea plantation in Longyan, China

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  Hiking trail in Point Loma near Cabrillo National Monument, San Diego, California, USA

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  Pepper, SoftBank Robotics' humanoid robot, on display in Tokyo

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  For International Beaver Day, a beaver swimming in Grand Teton National Park, Wyoming

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  Interior of Seattle Public Library’s Central Library

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  Desert monsoon, Red Rock Canyon, Las Vegas, Nevada, USA