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Glenariff Forest Park, Northern Ireland, UK
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International Day for Monuments and Sites
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Kalaloch Tree of Life, Olympic National Park, Washington, US
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To the infinite and back
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Lake Bled, Slovenia
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Celtic Colours International Festival
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A very public display of affection
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Saguaro cacti, Ironwood Forest National Monument, Arizona
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Splendid leaf frog
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Short-beaked echidna, Adelaide Hills, Australia
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Polar bear, Churchill, Manitoba
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Banff National Park, Alberta
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All hail the mighty mangrove!
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St. James Tidal Pool, Cape Town, South Africa
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Nuuk, Greenland
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Kofa National Wildlife Refuge, Arizona, United States
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Earth Day
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World Migratory Bird Day
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Up and away!
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A sky full of stars
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Kodiak National Wildlife Refuge, Alaska
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Rugged coasts and temperate rainforests
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Thousand Islands region, St. Lawrence River, USA-Canada border
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Gravity-defying wonders of the world
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Prayer flags in Phobjikha Valley, Bhutan
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Maya site of Copán
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Bighorn sheep in Valley of Fire State Park, Nevada, United States
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Banff National Park, Alberta
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Taktsang Palphug Monastery, Bhutan
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Italica, an old Roman city in Santiponce, Andalusia, Spain