St. Louis Union Station, a St. Louis Landmark and a National Historic Landmark, was once the largest and busiest passenger rail terminal in the world. Designed by the famous St. Louis architect, Theodore Link, it first opened in 1894 and at the height of train travel, serviced 22 railways. In the 1940's, over 100,000 passengers a day came through the St. Louis Union Station.
Today, this National Historic Landmark of unmatched beauty and elegance has been dramatically restored and redeveloped. St. Louis Union Station houses The St. Louis Union Station Hotel, the St. Louis Wheel, and the St. Louis Aquarium, set in the former retail space, and scheduled to open in 2019.
St. Louis Union Station is the host to several events throughout the year. Also, during the Christmas season, The Polar Express leaves from Union Station for the ride to the "North Pole"!