This stunning film portrait of Yosemite National Park uses the 1851 diary of the first expedition of soldiers into the Native American territory.
The journey of Prince Maximilian, German naturalist, and artist Karl Bodmer, who explored the Mississippi River area from 1832-1834.
When an earthen dam broke without warning, a small city in Pennsylvania was swept away in a wall of water over 30 feet high.
The contradictory history of a dam that became a statement of American power and prestige.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.
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.