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

This story appears in the January 2011 issue of National Geographic magazine. If they ever build a Wal-Mart at Machu Picchu, I will think of Collinsville Road. I'm standing at the center of what ...

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 ...