Her 1963 warnings about the effects of pesticides and herbicides - especially DDT - sparked a revolution in environmental policy and created a new ecological consciousness.
High on a granite cliff in South Dakota's Black Hills tower the huge carved faces of four American presidents: George Washington, Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
The contradictory history of a dam that became a statement of American power and prestige.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
The inspiring story of the modern environmental movement.
A personal story of one family's dramatic effort to hold onto their family farm in Iowa as massive foreclosures sweep the nation in the 1990s.
The American effort to relieve starvation in Soviet Russia in 1921 during the worst natural disaster in Europe in 500 years.