"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.
Robert Moses fueled some of the most ambitious -- and controversial -- public works projects ever conceived.
Though first seen only as an expensive luxury, Alexander Graham Bell's telephone soon transformed American life and became a necessity.
It was the deadliest workplace accident in New York City’s history.
Brothers Wilbur and Orville Wright built a flying machine that made its first flight in Kitty Hawk, North Carolina in 1903.
The contradictory history of a dam that became a statement of American power and prestige.
The story of the polio crusade pays tribute to a time when Americans banded together to conquer a terrible disease.
The Alaskan Highway stands today as one of the boldest homeland security initiatives ever undertaken.