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 story of the farmers who dreamed of prosperity and lived through ten years of drought, dust, disease and death.
She set out to save a species… us.
The most daring and innovative accomplishment at the turn of the 20th century.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The coal miners' battle for dignity led to the largest armed insurrection since the American Civil War.