Most archaeologists and historians agree that human civilization only emerged some 10,000 to 12,000 years ago. Yet many researchers have drawn attention to artifacts and various other evidence of advanced civilizations long before this, even millions of years earlier.Among them is Dr. Alexander Koltypin, a geologist and director of the Natural Science Research Center at Moscow’s International Independent University of Ecology and Politology.

Source: Is This a Huge Million-Year-Old, Man-Made Underground Complex? | Ancient Origins