Are you ready to make some noise? It"s International Rock Day! Wait, not that sort of rock. On this day, 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
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Vernazza, Cinque Terre, Liguria, Italy
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International Talk Like a Pirate Day
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Banff National Park, Alberta
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Huddled and hunting
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The most active volcano in the world
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Milky Way over Southwest Alentejo and Vicentine Coast Natural Park
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The Roaches ridge in the Peak District, England
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Andean cocks-of-the-rock, Ecuador
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Kalalau Beach on the Nā Pali Coast, Kauai, Hawaii, United States
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Dinosaur Provincial Park
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Vineyards in Varnhalt, Black Forest, Germany
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Fossils of belemnites and ammonites, Jurassic Coast, UK
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Giant cuttlefish, Whyalla, South Australia, Australia
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Daintree Rainforest and Noah Beach, Queensland, Australia
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Yellowstone National Park, Wyoming, United States
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A day for cousins of every stripe
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Mount Segla, Senja Island, Norway
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A postcard-perfect landscape
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