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
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Waterborne wizardry
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Elephant Rock, Al-Ula, Saudi Arabia
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Bridging past and present
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Beech trees and anemone wildflowers, Jutland, Denmark
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Birthplace of the Renaissance
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World Lion Day
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St James Tidal Pool, Cape Town, South Africa
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Perseid meteor shower over Nevada, United States
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Antarctica Day
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Where is this ethereal mountain?
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A peck between penguins
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Village of Santa Maddalena, Dolomites, Italy
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Castle Stalker, Argyll, Scotland
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Grand Canyon National Park, Arizona, United States
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Remembrance Sunday
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The road less taken?
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Home of the worst-smelling food?
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World Environment Day
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Happy St Patricks Day!
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A day for cousins of every stripe
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The largest gypsum dune field
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A sky full of stars
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Happy Easter!
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World Teachers Day
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Rides above the tide
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Giant panda
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Gujō Hachiman Castle, Gifu Prefecture, Japan
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World Meerkat Day
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A traboule in Lyon, France
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Cool bloomers
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