If there's one Iowa State Fair tradition that has held up over the years, it's the butter cow.
The butter statue lives in the coolers of the fairgrounds' Agriculture Building. According to the fair, it consists of 600 pounds of butter shaped over wood, metal, wire and a steel mesh frame.
At the fair on Saturday, people waited in line to see the building, taking in sights of ice sculptures and other exhibits before reaching the main event.
Inside of the coolers sat butter sculptor Sarah Pratt, reshaping butter on a sculpture of a girl. This year's companion butter statues were of the girl and characters from "Sesame Street": Big Bird, Bert, Oscar the Grouch, Cookie Monster, Elmo and Abby Cadabby.
J.K. Daniels sculpted the first butter cow in 1911, according to the fair.