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Saguaro cacti, Ironwood Forest National Monument, Arizona
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International Sloth Day
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A day for giving
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An island park for everyone
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Walking a rocky rainbow
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World Migratory Bird Day
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Hot enough to howl
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Grand Staircase-Escalante National Monument, Utah
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Halloween
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Santa slalom
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Lake Ontario, Toronto, during winter
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Bridging the gap two ways
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Plum-headed parakeet
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9,000-year-old handprints
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The 80th anniversary of D-Day
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Aurora borealis over Maligne Lake in Alberta
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Postcard from the Canadian Rockies
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Secluded sands in Mexico
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Spine-cheeked anemonefish
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Black-naped monarch
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Rugged coasts and temperate rainforests
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Best views tower
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Crescent-tail bigeye fish, Great Barrier Reef, Australia
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A city so nice, they made it twice
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A delta in the Venetian Lagoon, Italy
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Bring the king cakes
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St. James Tidal Pool, Cape Town, South Africa
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Short-eared owl
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World Wildlife Day
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Via Krupp, Capri, Italy