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Sea Slug Day
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Frankenstein Friday
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Bridge of Sighs in Venice, Italy
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Brocken spectre in Central Balkan National Park, Bulgaria
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Park of the Monsters, Bomarzo, Italy
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Diwali lights in Guwahati, India
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Mute swan
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Guilin and Lijiang River National Park, China
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Bald cypress trees in Georgia
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International Sloth Day
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Wartburg Castle overlooking Thuringian Forest in Germany
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The Guggenheim Bilbao turns 25
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Long-eared owl in the Czech Republic
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Prince Christian Sound in southern Greenland
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International Archaeology Day
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Río Arazas in Ordesa y Monte Perdido National Park, Spain
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Alaska moose
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Fossil Day
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Tortula moss, Netherlands
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Indigenous Peoples Day
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Earth Science Week
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World Octopus Day
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Berlin Festival of Lights
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International Geodiversity Day
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World Teachers Day
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World Space Week
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World Architecture Day
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Albuquerque International Balloon Fiesta
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Yosemite National Park turns 132
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Southern right whale