The Borglum family archives include some historic home movies, early color films of the mountain's sculpting in progress. See Gutzon and the workers in action as they struggle with winches, jackhammers -- and Mother Nature.
This stunning film portrait of Yosemite National Park uses the 1851 diary of the first expedition of soldiers into the Native American territory.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.
In 1927, the Mississippi River flooded from New Orleans to Illinois, leaving a million people homeless and leading to a major black migration to the North.
The American effort to relieve starvation in Soviet Russia in 1921 during the worst natural disaster in Europe in 500 years.
A daunting story of shipwreck, starvation, mutiny and cannibalism amongst a group left abandoned in the high Arctic.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.