The journey of Prince Maximilian, German naturalist, and artist Karl Bodmer, who explored the Mississippi River area from 1832-1834.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
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.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
The coal miners' battle for dignity led to the largest armed insurrection since the American Civil War.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.