ocr: 7 Travel Guide x Locate South Dakota LANDMARKS Kid Picks! Corn Palace 604 Main Street Mitchell, South Dakota 57301 5U5-996-/311 800-257-2676 fax 605-996-8273 Admission Free. The Corn Palace is a century-old exposition and concert hall whose wall murals are composed of grain and native grasses. Each year, the outside murals ofthis Moorsh-looking structure are Schedule stripped, and a new series of murals begun. Thousands of bushels of grain-mostly corn of Open daily.