Is There a Lost City of Alien Giants buried in Saudi Arabia?
Is there evidence of a lost city of ancient giants hidden beneath The Empty Quarter bordering Saudi Arabia and Oman.
It did use to be lush forested land. Likely human civilization grew to a peak here and then collapsed from destroying their own ecosystem 6,000ya.
Now their soil blows across the earth and feeds the Amazon Rainforests (which have only existed for about 2,000 years). So Aliens, meh. Ancient human civilizations and probably cities or villages under the sand, absolutely.