Union Station (Pittsburgh)
Union Station, also known as Pennsylvania Station and commonly called Penn Station, is a historic train station in Downtown Pittsburgh, Pennsylvania. It was one of several passenger rail stations that served Pittsburgh during the 20th century; others included the Pittsburgh & Lake Erie Railroad Station, the Baltimore and Ohio Station, and Wabash Pittsburgh Terminal, and it is the only surviving station in active use.
Source: Wikipedia — Union Station (Pittsburgh) (CC BY-SA 4.0)