SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Prehistoric burial mound. Archaeologists examining an ancient burial mound in Khakassia, a region of Central Asia in southern Siberia, Russia. This burial mound is thought to be 5000 years old. Khakassia is famous for the thousands of monuments and burial mounds found across its landscape of mountains and steppes. Photographed in July 1989.
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