Lake Peipus, the fifth-largest lake in Europe, dates back hundreds of millions of years to the Paleozoic Era and is known for its sand dunes, which can "sing" when the wind blows just right. In the winter the frozen lake surface may feature ice hummocks, as seen in this image. The hummocks are caused by slow, uneven pressure in the ice pack.
Lake Peipus, Estonia
Today in History
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Weaverbird nests at Kenya’s Samburu National Reserve
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‘You should see the one that got away!’
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League of Nations, 100 years later
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China s colorful terraced pools
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Ski touring in Austria
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Take the Stairs Day
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Abraham Lake, Alberta, Canada
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The Matterhorn reflected in Lake Stellisee at sunrise, Zermatt, Switzerland
More Desktop Wallpapers:
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World Art Day
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Racing toward history
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Waiānapanapa State Park, Maui, Hawaii
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Collared aracari in Costa Rica
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Harvest time in the Palouse
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An uncommon look at an American icon
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The Rainbow Houses of Houten, Netherlands
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Sunbeams across Tartu County, Estonia
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A stroll above the stratosphere
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Basking in the glow
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A water loch-ed castle
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Glastonbury Festival begins
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Death Valley National Parks Anniversary
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A winter wonderland in Northeast China
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Seville, Spain
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Taughannock Falls State Park
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Hiding in plain sight
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A medieval Moorish gem
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Just another day in paradise
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Astoria-Megler Bridge, Oregon
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Arches National Park, Utah
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Space-age style by the sea
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Manatees rebound
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World Octopus Day
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The Great Blue Hole, Belize
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A state-of-the-art lookout on the Rock of Gibraltar
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A long winter’s nap, perhaps?
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A step toward freedom
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Hello, harbinger of spring
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Cool water in the Quinault
Bing Wallpaper Gallery

