Union Station was one of the busiest, if not the busiest, rail terminal in the United States during World War II. As the golden age of passenger rail service declined, so did Union Station. At one point, most of it was unheated and a small structure was built inside the massive structure to serve as the Amtrak station - until Amtrak service ended. In the late 1990s, a great public works program restored Union Station to its former glory.
Photo taken by J.R. Manning