The Hamilton Turnhalle, a fieldstone building trimmed with cut limestone quoins, lintels, and sills, was constructed in 1867 by local farmers and merchants, with Edward Janssen as contractor. The last remaining turner hall of its type in the United States, it served for more than twenty years as a combination meeting place and gymnasium for members of the Hamilton Turnverein society. After the society disbanded, the building was used as a shoe factory and later as a cider mill, but neither use was economically feasible, and it fell into disrepair. It was entered on the National Register of Historic Places on July 1, 1976, then donated by Adelaide B. Miller to the Town of Cedarburg and the Cedarburg Landmark Preservation Society. Restoration funds came from donations by local citizens and a matching grant from the National Park Service obtained through the State Historical Society of Wisconsin.