Carved by the Colorado River, nearly 2 billion years of Earth"s history are exposed in the layers of the Grand Canyon in Arizona, United States. While geologists continue to debate parts of the formation story of the canyon, recent studies suggest the river carved its path through the region about 5 to 6 million years ago. Since then, the river has been deepening and widening the canyon while sculpting its dramatic geographical features.
Zoroaster Temple, Grand Canyon National Park, Arizona, United States
Today in History
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Wait, mountain—you shall bear my castle!
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Season of light in the City of Light
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Boxing Day
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Sequoias of the sea
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World Childrens Day
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Stealthy pollinators
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Waitangi Day in New Zealand
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Autumn equinox
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The Rainbow Bridge
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Nighttime view over the Gulf Coast
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Pollinator Week
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Clouds dance above Sundance
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A black heron canopy hunting in Botswana
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The Painted Hills, Oregon
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Huddled and hunting
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Peggys Point Lighthouse
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Union Square, Manhattan, New York, USA
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Wheatear, Peak District National Park, England
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Getting starry-eyed at the moon
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Bukhansan National Park, South Korea
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Hovering over harmonious horticulture
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Duomo Santa Maria del Fiore, Florence
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Porto Flavia, Sulcis-Iglesiente, Sardinia, Italy
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Astoria-Megler Bridge, Oregon
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Brown-throated three-toed sloth
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International Tea Day
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Tombeau du Géant in Bouillon, Belgium
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International Mountain Day
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World Population Day
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Huntington Beach Pier, California, USA