Broad Street Station, 1921
Broad Street Station dominated the center of the city. Trains would enter and exit the station two stories above street level on a viaduct known as the "Chinese Wall" and run west to cross the Schuylkill River. The tracks thus bisected the western half of Center City Philadelphia. Fifteenth Street ran beneath the station's lobby, and the numbered streets up to 24th ran beneath the viaduct. John F. Kennedy Boulevard traces a similar path today.