Go behind the scenes at the country's busiest transportation hub. Half a million people pass through New York City's Penn Station every day. During rush hour, a train arrives at a platform every 58 seconds. Phil Kaplan has worked for Amtrak for 37 years, and he takes us for an unusual behind the scenes look at the Central Control room.
Brothers Wilbur and Orville Wright built a flying machine that made its first flight in Kitty Hawk, North Carolina in 1903.
Between 1854 and 1929 more than 100,000 abused or orphaned children were sent by train to the Midwest to begin new lives in foster families.
Postwar New York City and the global economic order told through the story of the World Trade Center.
Robert Noyce's invention of the microchip launched the world into the Information Age.
After 18 years of struggles, the Golden Gate Bridge opened on May 27, 1937.
Politics, culture, race relations, and technology in a year of change.
Newspaper magnate William Randolph Hearst fought to suppress a film by Orson Welles, a film that would become one of cinema's masterpieces.
During the Great Depression, Americans built the Hoover Dam, one of the greatest engineering works in history.