A deadly accident at the old Grand Central Depot in 1902 led the busy terminal to be redesigned. Over a decade, William Wilgus and his construction crews sunk the tracks underground and switched from steam to electric service -- keeping the trains running the whole time.
From steam engine depot to the grand Beaux Arts monument that opened in 1913 and stands today, explore this gallery of photographs of Grand Central. It features several images from the mid-20th century taken by Boris Y. Klapwald.
Robert Moses fueled some of the most ambitious -- and controversial -- public works projects ever conceived.
The inspiring story of the modern environmental movement.
The thrilling true story of the American Olympic rowing team that triumphed against all odds in Nazi Germany in 1936.
The U.S. and the Soviet Union race to build the hydrogen bomb during the Cold War, thus beginning the nuclear arms race.
Major Walter Reed's discovery in 1900 that mosquitoes spread yellow fever halted an outbreak and led to the disease's eventual eradication.
The worst epidemic in American history killed over 600,000 Americans during World War I.
A new religion called spiritualism affected the nation in the era of Abraham Lincoln, P. T. Barnum and Frederick Douglass.
At the height of segregation, an unlikely alliance between a black medical genius and a white surgeon led to a pioneering medical breakthrough.