When an earthen dam broke without warning, a small city in Pennsylvania was swept away in a wall of water over 30 feet high.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.
John Wesley Powell's epic journey into the unknown Grand Canyon was filled with adventure as his team mapped the Colorado River for the first time.
A daunting story of shipwreck, starvation, mutiny and cannibalism amongst a group left abandoned in the high Arctic.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
The story of the farmers who dreamed of prosperity and lived through ten years of drought, dust, disease and death.
The 300-year saga of the American whaling industry.
The life of the legendary photographer, known best for his black and white images of the wilderness of the American West.