Rising more than 700 feet above the raging waters of the Colorado River, Hoover Dam was called one of the greatest engineering works in history. 5,000 working men and their families came to live in the Nevada desert, all in search of a paycheck. The work was extremely dangerous, and done mostly without modern safety precautions.
A uniquely impressionistic history of the early years of the Space Race.
The story of the polio crusade pays tribute to a time when Americans banded together to conquer a terrible disease.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
Begun during the Civil War, the transcontinental railroad employed 20,000 men, mostly immigrants, who built the iron road with their bare hands.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
Three years before the Gold Rush, 87 pioneers took a shortcut westward to California, only to get caught in the snows of the Sierra Nevada.
The contradictory history of a dam that became a statement of American power and prestige.
"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.