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.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
Accounting for America's most famous inventor and his role in America's future.
In 1960, Francis Gary Powers' U-2 spy plane was shot down over the Soviet Union.
Though first seen only as an expensive luxury, Alexander Graham Bell's telephone soon transformed American life and became a necessity.
Robert Noyce's invention of the microchip launched the world into the Information Age.
The tale of oil-seeking mavericks whose risk-taking, sweat and dreams changed an American industry.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
A year in the life of Wyoming cowboys and the ranching families of the American West.