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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A swim in the sky
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Tough turf
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International Lighthouse and Lightship Weekend
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Castle Frankenstein in Darmstadt, Germany
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Green fields of grain
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The Bazaruto Archipelago of Mozambique
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Visiting the Mamanuca Islands for Fiji Day
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Tombeau du Géant in Bouillon, Belgium
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Autumnal equinox
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Happy 50th for the National Trails System!
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American Wetlands Month
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The Great Glen
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Nighttime view over the Gulf Coast
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Merced River, Yosemite National Park, California
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Celebrating Bike to Work Week, May 14-18
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National Cherry Blossom Festival, Washington, DC
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Skagit Valley Tulip Festival
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National Public Lands Day
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Río Negro, Amazon basin, Brazil
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Splendid leaf frog
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Sea Otter Awareness Week
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A bite of ancient history
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A stunning sight in Mexico s wilderness
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The artists come to Venice
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Spring equinox
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Happy Father s Day
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Buddha in the roots of a tree, Ayutthaya, Thailand
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Ludwig’s palace
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Grand Teton National Park
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Frozen beauty
Bing Wallpaper Gallery

