Building the 700 foot high dam was only one piece of the puzzle.
Workers moved the Colorado River from the bed it had known for 12 million years.
The story of the polio crusade pays tribute to a time when Americans banded together to conquer a terrible disease. The medical breakthrough saved countless lives and had a pervasive impact on American philanthropy that continues to be felt today.
Watch Chapter 1 of Triangle Fire.
Watch the opening scene of The Secret of Tuxedo Park.
It was one of the worst blizzards in American history, dumping four feet of snow and leaving hundreds dead.
Watch Chapter 1 of Influenza.
The story of the Wall Street tycoon whose radar technology helped win World War II.
Grand Central Terminal's builders pioneered the concept of air rights.
On February 1, 1913, New Yorkers rushed to see the opening of Grand Central Terminal.
Watch a video interview with Dr. Alfred Crosby, author of Epidemic and Peace 1918: America's Forgotten Pandemic.
Filmmaker Sarah Colt discusses the challenges of producing a biography on Henry Ford.
