Look back at the technological advancements that allowed the U.S. to meet President Kennedy's 1961 challenge to put a man on the moon in just eight years.

In 1942, under extraordinary secrecy, the U.S. government brings top scientists together to work on the Manhattan Project. Three years of technological advancements explode over Hiroshima.

On an icy Christmas night in 1776, General George Washington leads his troops across the treacherous Delaware River -- a decision that will become a turning point in the American Revolution.

During WWII, a vast complex of bunkers was constructed under the streets of London. Using cutting-edge technology, explore this lost world -- an entire subterranean city built to keep the British government running.

Take a closer look at the many technologies needed for the United States' U-2 spy plane and the Soviets' SA-2 surface-to-air missile to meet on May Day 1960.

Examine what brought Al Capone to his knees after the St. Valentine's Day Massacre, including the camera that captured its bloody aftermath and printing presses that reproduced it nationwide.