The U.S. is full of archaeological sites, "but in most cases you could be standing right on top of one and never know it," Elic Weitzel told Newsweek.

How did this ancient South Asian tradition seep into the American culture? Yoga’s ancient roots are found in the ancient Hindu text, the Rig Veda, said to be more than 3,000 years old.

Was ancient America one of the most dangerous places ... These climate disasters forced dramatic cultural changes, including the temporary abandonment of major urban centers and significant ...