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Antarctica Day
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This island is more than a mile high
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All is calm
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World Hippo Day, a giant celebration
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The glass dome of Galleria Vittorio Emanuele II, Milan, Italy
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Sandstone hoodoos, Bryce Canyon National Park, Utah, United States
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A 50-year balancing act
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International Day of Human Space Flight
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Black-tailed prairie dogs in Badlands National Park, United States
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Rabindra Jayanti
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Holiday hues
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International Polar Bear Day
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Christmas market, St. Stephens Basilica, Budapest, Hungary
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World Dolphin Day
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The sun sets on the Valley of the Moon
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Gathering Place, Tulsa, Oklahoma, USA
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World Elephant Day
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Ride the wave
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On a dark and stormy night...
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A group of Southern gemsbok in the savannah, Botswana
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Purple mountain majesties
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Boxing Day
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Manatee in Crystal River, Florida, United States
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Like sands through the hourglass
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Two Guanacos, Torres del Paine National Park, Chile
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Red deer, Canada
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Plum blossoms, China
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Plitvice Lakes National Park, Croatia
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World Migratory Bird Day
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Point Reyes National Seashore, California, USA