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World Hello Day
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Sandhill cranes, Bosque del Apache National Wildlife Refuge, New Mexico, USA
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Celebrating Pi Day
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Saguaro cacti, Ironwood Forest National Monument, Arizona
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Home of the worst-smelling food?
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Brighton Festival
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Lake Bled, Slovenia
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Tasmans Arch, Tasman National Park, Tasmania, Australia
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World Nature Conservation Day
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J.R.R. Tolkien Day
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Just a pinch
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A delta in the Venetian Lagoon, Italy
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Celebrating the tropics
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Were halfway there
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Darwin Day
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Happy Cousins Day!
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Spiralling upward...
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Meet for lunch?
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Rolands Breach, Spain
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Stop and smell the Sakura
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Knuthöjdsmossen nature reserve, Sweden
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Abraham Lake, Alberta, Canada
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Lake Tyrrell, Victoria, Australia
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World Teachers Day
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Butterfly, fly away
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An ultralight aircraft flying over the sands of Namibia
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Kick-off in Qatar
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International Zebra Day
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Red rock country
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Sligachan Old Bridge, Isle of Skye, Scotland