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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Tibetan New Year
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Whooper swans, Kotoku Pond, Japan
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Bodie State Historic Park, California, United States
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Sway with the Amazonian canopy
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The other great barrier reef
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The largest gypsum dune field
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Sweetheart Abbey, Dumfries and Galloway, Scotland
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Vila Franca Islet, São Miguel Island, Azores, Portugal
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Bathing boxes at Brighton Beach, Australia
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International Lighthouse Lightship Weekend
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Go fly a kite!
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Kings Mountain, Chugach Mountains, Alaska, United States
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Museum Night in Berlin
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A vibrant, sun-drenched island
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Wheatear, Peak District National Park, England
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Dalmatian pelicans, Lake Kerkini, Greece
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Connecting the dots
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Autumnal equinox
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Milwaukee City Hall, Wisconsin, United States
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Eyes on the skies
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International Archaeology Day
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Bohemian waxwings
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Telašćica Nature Park, Dugi Otok, Croatia
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Tiger siblings in Jim Corbett National Park, Uttarakhand, India
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Walking a rocky rainbow
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Brighton Festival
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Thousand Islands region, St Lawrence River, USA-Canada border
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An explosive history
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Great white egret, Hungary
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Clouds dance above Sundance
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