In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.
This stunning film portrait of Yosemite National Park uses the 1851 diary of the first expedition of soldiers into the Native American territory.
The most daring and innovative accomplishment at the turn of the 20th century.
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 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.