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.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
When an earthen dam broke without warning, a small city in Pennsylvania was swept away in a wall of water over 30 feet high.
A daunting story of shipwreck, starvation, mutiny and cannibalism amongst a group left abandoned in the high Arctic.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.