When Clark Prudhon, of Pruden Steel Buildings in Evansville, Wisconsin learned that the state was about to cancel plans for an exhibit at the 1964 World's Fair, he contacted architect John Steinman from Monticello, Wisconsin, and directed him to design a low cost structure utilizing materials provided by his company. The result was a Modernistic style rotunda. At the close of the fair, the structure was to be demolished. Ivan Wilcox purchased the structure and had it dismantled and trucked to Boscobel, Wisconsin. In 1965, Central Wisconsin Broadcasting Inc., owned by Howie and Dorothy Sturtz, purchased the building parts and had the structure reconstructed. The below grade area and gardens were added at that time. EL

EL – The structure is eligible for the National Register of Historic Places
LR – The structure is listed on the Local Historic Register
NR – The structure is listed on the National Register of Historic Places