What country has the U.S. helped the most? Where has America's effort made the most difference? Which effort do you think has had the greatest impact on the world... or on the U.S.?
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
In 1927, the Mississippi River flooded from New Orleans to Illinois, leaving a million people homeless and leading to a major black migration to the North.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
The internationally famous carnival of delights in New York was the birthplace of the hot dog and the roller coaster.
Follow seven former Amish who choose their freedom over their family
A marvel of engineering, architecture, and vision, the story of the Beaux Arts structure on 42nd street that forever changed midtown Manhattan.
Television game shows became an instant national phenomenon in 1955, but four years later contestant Charles van Doren admitted they were a scam.
Accused by a janitor, a respected Harvard professor was hanged for the murder of Dr. George Parkman, one of Boston's richest citizens, in 1849.