The burliest lumberjack with the best-oiled chainsaw couldn"t slice the massive "timbers" found in Petrified Forest National Park in northeastern Arizona. So why are these giant stone logs segmented in such symmetrical rounds, as if they"re ready to be split into firewood?
Petrified Forest National Park
Today in History
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Take the Stairs Day
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Spreadsheet Day
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The perfect canvas for an ancient text
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How lovely are your branches
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Hooray, hooray, it s Unicorn Day!
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A wonder in winter
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Kelp buddies
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Tulips at Emirgan Park in Istanbul, Türkiye
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World Water Day
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Frozen fun in the Canadian cold
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National Umbrella Day
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Why you should thank a nurse today
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Mid-Autumn Festival
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Florentine garden brings generations together
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Montreux, Switzerland, and all that jazz
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Dolomites
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Quiver trees in Namibia
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Monarch butterflies in Angangueo, Mexico
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World Octopus Day
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National Find a Rainbow Day
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Young black caiman, Tambopata National Reserve, Peru
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World Penguin Day
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Sunrise at Grand Teton National Park, Wyoming
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Skaftafell, Vatnajökull National Park, Iceland
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In the Himalayas for International Mountain Day
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75th anniversary of the Spruce Goose
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Back to the nest
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Death Valley National Park, California
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World Meteorological Day
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A summertime light show