International Rock Day, on July 13, celebrates these hardy heroes, which have played a big part in human history since at least the Stone Age. They served as humanity"s first tools and as nature"s journals, protecting ancient fossils and documenting changes caused by geological processes.
International Rock Day
Today in History
More Desktop Wallpapers:
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Oh, the places you’ll go
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Alaska National Interest Lands Conservation Act marks 42 years
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Château de Sully-sur-Loire, Center-Val de Loire, France
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This view is brought to you by…
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National Take a Hike Day
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Bangkok, Thailand
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Autumn in Piedmont
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World Migratory Bird Day
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The Grand Départ: Tour de France begins
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Wild scene on the Merced River
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European fallow deer in England
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World Art Day
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The Tre Cime di Lavaredo, Italy
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Humming along
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Christmas market in Leipzig, Germany
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Computer science on the page
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Looking down on the Otter
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Red skies at Ruby Beach
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Lupine fields, Snæfellsnes, Iceland
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It’s Opening Day for Major League Baseball
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International Day of the Tropics
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Glen Brittle, Isle of Skye, Scotland
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Gray seal pup, Norfolk, England
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The birth of Bauhaus
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Te Rewa Rewa Bridge near New Plymouth, New Zealand
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Arctic fox in Norway
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Arbor Day
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Martin Luther King Jr. Day
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Hitsujiyama Park, Saitama Prefecture, Japan
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Behold the perfect cone
Bing Wallpaper Gallery

