B-12 Tower was a historic railroad-switching power built some time in the 1890's. Steel arms inside the building and down along the tracks were manually operated by levers in the upper portion of the building. For over one hundred years, the building stood at the junction of the old Milwaukee Road and Soo line interchange (B-12). Operators in this tower were responsible for opening and closing railroad switches to govern locomotive traffic between these intersecting railroad lines. This tower remained in service until July 19th, 1996. On November 11th, 1997, it was moved to this location, approximately four and one half blocks west of it original site. The Village of Franklin Park and numerous individuals contributed to its relocation and restoration.