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
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Lake Tyrrell, Victoria, Australia
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The party’s just starting
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Constitution Day and Citizenship Day
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We did not invent this, honest
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Reflections of the night sky
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Westerheversand Lighthouse
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Te Rewa Rewa Bridge near New Plymouth, New Zealand
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World Penguin Day
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Anshun Bridge, Chengdu, China
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Feeling crabby?
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Wadden Sea coast, Friesland, Netherlands
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A wild and scenic scene
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Lake Louise, Banff National Park, Alberta
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A giant relic in Java
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Sydney Harbour, New South Wales, Australia
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A young bull moose in Denali National Park, Alaska
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Alaska National Interest Lands Conservation Act marks 42 years
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Kissing Day
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Happy World Whale Day!
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Everglades National Park marks 90 years
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Storseisundet Bridge, Norway
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Rainbow River, Rainbow Springs State Park, Florida
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San Francisco’s City Hall illuminated by the iconic colors of Pride
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National Take the Stairs Day
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The birthplace of a classic Christmas carol
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World Art Day
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Craig Goch Dam in the Elan Valley of Wales
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A hero for the 21st century
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Carlsbad Caverns National Park in New Mexico
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Spring comes to the Palouse
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