Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
The American effort to relieve starvation in Soviet Russia in 1921 during the worst natural disaster in Europe in 500 years.
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.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
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 New Deal program CCC put three million young men to work in camps across America.
The coal miners' battle for dignity led to the largest armed insurrection since the American Civil War.