Are you ready to make some noise? It"s International Rock Day! Wait, not that sort of rock. Today, we"re all about granite, limestone and slate. There are three types of rock: igneous are formed from solidified magma and lava; sedimentary rocks are layers of sedimentary particles such as sand; and metamorphic rocks are the result of heat and pressure on other kinds of rock.
International Rock Day
Today in History
More Desktop Wallpapers:
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The ruins of an ancient monastery, Skellig Michael, Ireland
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National Mushroom Month
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Isn’t this view mesmerizing?
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Gateway to Iberia
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Maritime forest in Cumberland Island National Seashore, Georgia, United States
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Where fire and water meet
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International Day for the Conservation of the Mangrove Ecosystem
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Giant panda
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Bardenas Reales Biosphere Reserve and Natural Park, Navarra, Spain
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World Donkey Day
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Babbling on and on
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Winnie the Pooh Day
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Songkran—Thai New Year
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Hiding in the woods
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Who uses this grassy bridge?
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Bamburgh Castle, Northumberland, England
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Guild houses of Grand-Place, Brussels, Belgium
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A peck between penguins
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Turtle-y nice day for a swim
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A different kind of toucan
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World Lizard Day
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Hang Sơn Đoòng, Phong Nha-Kẻ Bàng National Park, Vietnam
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Sundance Film Festival
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Modica, Sicily, Italy
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Beauty comes in trees
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Zebras enjoying their day
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Pick your paradise
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Ad-Deir, Petra, Jordan
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Old City of Dubrovnik in Dalmatia, Croatia
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Village of Santa Maddalena, Dolomites, Italy
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