500 Washington St., Columbus, Indiana. County/parish: Bartholomew.
Added to the National Register of Historic Places May 16, 2000. NRIS 00000704.
The Irwin Conference Center (formerly known as Irwin Union Bank) was designed by Eero Saarinen and built in 1954 in Columbus, Indiana, United States. It is currently owned and operated by Cummins, whose world headquarters is located across Jackson Street in the Cummins Corporate Office Building. In recognition of its unique and beautiful design, the resource was designated a National Historic Landmark by the National Park Service in 2001.
The building consists of a one-story bank structure and adjacent three-story office annex. A portion of the office annex was built along with the banking hall in 1954. The remaining, much larger portion, designed by Kevin Roche, John Dinkeloo and Associates, was built in 1973.
(read more...)National Park Service documentation: https://catalog.archives.gov/id/132002370