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Earth from space: Wandering sand dunes circle gigantic 'eye' sculpted by ancient city-killer meteor in the Sahara
This 2013 astronaut photo shows a giant eye-shaped impact crater in the Sahara Desert that is slowly being circled by ...
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One Of Alaska's Least Crowded National Parks Is Known For Stunning Sand Dunes And Wildlife
Make the thrilling journey into this Alaskan national park and prepare to be awestruck by a natural setting that seems both ...