"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.
The contradictory history of a dam that became a statement of American power and prestige.
The international race to develop biological weapons during the 20th century.
After 18 years of struggles, the Golden Gate Bridge opened on May 27, 1937.
The first around-the-world air race was sponsored to prove that the airplane had a commercial future.
George Eastman introduced the Kodak and Brownie camera systems and transformed photography into something anybody could do.
Robert Moses fueled some of the most ambitious -- and controversial -- public works projects ever conceived.
The remarkable story of mid-19th century ingenuity and perseverance during the laying of the transatlantic telegraph cable between North America and Europe.