When St. Louis' Union Station opened to the public in 1894, nearly 10,000 people gathered to celebrate. What they saw rivaled famed stations in the East, with its barrel-vaulted ceiling, sweeping archways, and Tiffany stained-glass windows. Modeled after the walled city of Carcassone, France, Union Station was one of the busiest in the world during its heyday. Follow the history of this great architectural triumph from its original glory days through...