The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
The contradictory history of a dam that became a statement of American power and prestige.
The 300-year saga of the American whaling industry.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
The most daring and innovative accomplishment at the turn of the 20th century.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.