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World Hippo Day, a giant celebration
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When ice imitates art
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Firefall at Yosemite
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A gorge-ous place to drop in
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Let the Great Backyard Bird Count begin!
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Carlsbad Caverns National Park, New Mexico, USA
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Babbling on and on
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Part science experiment, part public park
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Saguaro cacti, Ironwood Forest National Monument, Arizona
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Chilling out on an ice floe
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Sand dunes in the Sahara, Algeria
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Where we go to play
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The animal kingdoms great migration
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Willamette National Forest, Oregon
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Let there be lights!
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Neuschwanstein and Hohenschwangau Castles, Bavaria, Germany
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Milky Way over Southwest Alentejo and Vicentine Coast Natural Park
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Strong sibling bonds
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The healing powers of wastewater
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Nothing says ‘San Francisco’ quite like...
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Pretty in pink
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The butterfly effect
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Glenariff Forest Park, County Antrim, Ireland
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The Roaches ridge in the Peak District, England
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A mountaintop cultural wonder
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Kirkilai lakes, Biržai Regional Park, Lithuania
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King of the jungle? Nope
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Season of light in the City of Light
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Festival fever
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Monarch butterflies, Goleta, California