Supported by i.M.A.D.E, this project led by Michele Chiuini studied the architectural decoration of the demolished Chicago Stock Exchange, designed by Louis Sullivan in the early 1880s, through the analysis and digital modeling of the fragments acquired by Ball State. Currently stored in the College of Architecture and Planning, these fragments have never been studied. Using a ZCorp hand-held scanner, the fragments were documented as three-dimensional digital models and cataloged. They were then digitally reassembled in their original location in the building. This digital model will provide a visual resource together with a database for scholarly research. The significance of this project extends to the future use of digital technologies in two main directions: as form of visualization and documentation of lost historic architectural heritage, and as a support for the digital fabrication of architectural elements for historic preservation work.