History Museum The History Center features tours of the Hay-McKinney mansion, built in 1911. The Chisholm Halle Costume Wing is always dressed to the nines since we have more than 30,000 items to choose from for rotating exhibitions. In our other galleries, new special exhibitions change several times a year, with topics ranging from football to medicine. You'll discover the lifestyles of the rich and famous, and of the servants whose lives differed dramatically from the main house glamour. Click here to view a list of our future exhibitions!