Consisting of 33-acres under one roof, Building 41 was the largest pharmaceutical research building in the U.S. when constructed.  Owned and operated by Pfizer (originally Upjohn and then Pharmacia) the building remains one of the largest in the world.  Basic Art Deco motifs were incorporated at the stepped concrete and brick facade of the main entrance, including bronze borders, railings, door frames, and a panel of brick glass.  Concrete bands highlight the long, low windows and the top edge of this brick structure.  A rounded overhang, also of bronze, projects over the stairs.  Historically, bold sans-serif letters spelled out the original company name on the overhang.  The entire cost of construction ($36 million) came from Upjohn’s earnings and reserves.