From Rockefeller Center, the Empire State Buiding and Grand Central Terminal, to the carvings on Mount Rushmore, the Golden Gate Bridge, Hoover Dam, and Grand Coulee Dam, the U.S. has dozens of impressive, important, and iconic structures. Which ones have you been to? Which has had the biggest impact on its local community and on the country? Which one is your favorite?
Begun during the Civil War, the transcontinental railroad employed 20,000 men, mostly immigrants, who built the iron road with their bare hands.
A six-hour series on how the West was lost and won, from the Gold Rush in 1848 until Wounded Knee in 1893.
The ultimate frontiersman, Carson inspired popular novels before being associated with the "Long Walk" of the Navajo people.
During the Great Depression, Americans built the Hoover Dam, one of the greatest engineering works in history.
William "Buffalo Bill" Cody's legendary exploits helped create the myth of the American West that still endures today.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.
The remarkable story of mid-19th century ingenuity and perseverance during the laying of the transatlantic telegraph cable between North America and Europe.
The historic journey of Apollo 8 captivated the world in 1968 -- a bright spot in a year marked by political assassinations, race riots, and the Vietnam War.