Have you heard of these seven ancient disasters in America that changed history? Prepare to have your mind blown.

Evidence of an ancient Indian city—one that rivaled the size of Washington, D.C., at the time—would have mucked up the story line. Even American universities took scant notice of Cahokia and ...

Their results, published in the journal Nature this month, present evidence that ancient bacterial strains related to the syphilis disease group were widespread in the Americas before the arrival ...

The priceless pages at D.C.’s National Archives tell the story of America’s birth. But did you know that inside the building ...

Industrial farming in Brazil and off-road racing in Chile continue to threaten geoglyphs that are so big, they can only be ...