In 1960, Francis Gary Powers' U-2 spy plane was shot down over the Soviet Union.
Engineer James Eads tamed the mighty Mississippi, turning New Orleans into the second largest port in the nation.
During World War II, more than a thousand women signed up to fly with the U.S. military as WASPS.
A personal story of one family's dramatic effort to hold onto their family farm in Iowa as massive foreclosures sweep the nation in the 1990s.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.
Major Walter Reed's discovery in 1900 that mosquitoes spread yellow fever halted an outbreak and led to the disease's eventual eradication.
"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.
The first around-the-world air race was sponsored to prove that the airplane had a commercial future.