Reading Terminal Station   In 1889, the Philadelphia and Reading Railway decided to build a train depot, passenger station, and company headquarters on the corner of 12th and Market Streets. The move came eight years after the Pennsylvania Railroad opened its Broad Street Station several blocks away at 15th and Market Streets, and one year after the Baltimore and Ohio Railroad opened its 24th Street Station at 24th and Chestnut Streets. ARCHITECTURE: The headhouse was designed in 1891 by Francis H. Kimball, and the train shed by Wilson Brothers & Company. Construction began that same year, and the station opened on January 29, 1893. At the time, the trainshed was one of the largest single-span arched-roof structures in the world. The following year, the Wilson Brothers would build an even larger trainshed three blocks away, for the Pennsylvania Railroad's Broad Street Station. The Reading's trainshed is now the only such structure left in the United States. The complex was fronted on Market by an eight-story headhouse that housed the passenger station and company headquarters. Built in the Italian Renaissance style, the headhouse has brick bearing walls with cast-iron columns and timber floors. Interior finishes include molded ornamental plaster and marble with cast-iron detailing. This station was placed on the National Register of Historic Places in 1972 and was declared a National Historic Landmark in 1976. Now the remaining space on the concourse levels of the headhouse became retail space. The former Reading Railroad offices on the headhouse's upper floors were converted to meeting and ballroom facilities. It also contains more than 200 rooms for the adjacent Marriott Hotel, to which it is connected by a skywalk and for which it serves as a secondary entrance. (wikipedia)