St. Louis Union Station is a National Historic Landmark of beauty and elegance. It first opened in 1894 and was the largest and busiest passenger rail terminal in the world. Troops passed through the “Whispering Arch” on their way to war and families hopped aboard trains bound for untold adventures. Today the adventure still awaits you at St. Louis Union Station (one of the top attractions is St. Louis) – both in the grand structure’s amazing architecture and in the unique shops, restaurants, entertainment venues and historic hotel that fill the Train Shed itself. You will also find a lake and entertainment plaza for festivals, concerts and other special events. Explore the building's colorful history and architecture through an award-winning collection of letters, memorabilia and exhibits stationed throughout the structure. Free museum and self guided tours; free guided tours by appointment. Tour buses may park on 20th Street at no charge. Tour buses should drop visitors off at Market Street main entrance.