The Old St. Louis County Courthouse was built as a combination federal and state courthouse in St. Louis, Missouri. Missouri's tallest habitable building from 1864 to 1894, it is now part of Gateway Arch National Park and operated by the National Park Service for historical exhibits and events. Wikipedia

St. Louis Union Station is a National Historic Landmark train station in St. Louis, Missouri. At its 1894 opening, the station was the largest in the world that had tracks and passenger service areas all on one level. Traffic peaked at 100,000 people a day the 1940s. The last Amtrak passenger train left the station in 1978.

In the 1980s, it was renovated as a hotel, shopping center, and e... Wikipedia