In the late 19th century, paleontologists Edward Cope and O.C. Marsh uncovered the remains of hundreds of prehistoric animals in the American West, including dozens of previously undiscovered dinosaur species. But the rivalry that developed between them would spiral out of control, permanently damaging their careers and threatening the future of American paleontology.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.
During the Great Depression, Americans built the Hoover Dam, one of the greatest engineering works in history.
Begun during the Civil War, the transcontinental railroad employed 20,000 men, mostly immigrants, who built the iron road with their bare hands.
The inspiring story of the modern environmental movement.
As the star attraction of Buffalo Bill's Wild West Show, Annie Oakley thrilled audiences around the world with her shooting feats. Part of the Wild West collection.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
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.