Summerwind mansion - Wisconsin Originally renovated in 1916 by US Secretary of Commerce Robert Lamont, the Summerwind, AKA Lamont Mansion, was rumored to be haunted before anyone had the chance to live in it. With a terrifying history of dark apparitions, disappearing corpses, attempted suicides, and demonic possessions, the infamous Summerwind Mansion is easily one of the most haunted places in Wisconsin,,,,