Satellite images reveal intriguing and mysterious structures in the Sahara desert. The constructions are either damaged pyramids or antediluvian remains. Something very large is hidden under the sand and we don’t know what it is. The Great Flood is a controversial topic among scientists but there are those who are convinced once in the distant past our planet was submerged and the waters wiped out entire civilizations. Some would say it was the day when Earth nearly died..

The Secrets Of The Sahara Desert

National Geographic

Geology

45 minutes.

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