In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The New Deal program CCC put three million young men to work in camps across America.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
The contradictory history of a dam that became a statement of American power and prestige.
The life of the legendary photographer, known best for his black and white images of the wilderness of the American West.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
The 300-year saga of the American whaling industry.
The story of the farmers who dreamed of prosperity and lived through ten years of drought, dust, disease and death.