 The Greek Revival building was added to the National Register of Historic Places on April 17, 1970, and in 2007 was named by the Association of Independent Architects one of Illinois' 150 most important architectural structures.The John Wood Mansion features four large Doric columns, which Wood himself turned at a lathe he built for that purpose, four large chimneys and many ornate details inside and out.A great many original Wood family and period furnishings are displayed throughout the mansion.