The Museum's interior is designed to provide a clear circulation path for visitors and creates central spaces for after-hours functions. In addition to administrative offices, the building also includes three gallery areas, a multipurpose theater, hands-on children's areas, a flexible exhibit space, research library, catering area, and a retail store. A 45–foot-high domed rotunda serves as an orienting point and houses the Hall of Fame honoree exhibits. Two grand staircases providing overlooks into the rotunda are made of different metal finishes and colors with art deco inspired ornamental railings. The floors are a honed Corton Bressandes French limestone on the ground floor. Doors of stained walnut mark the entrance to the theater. Western themes are found throughout including native flowers, horse heads and the wild rose motif. The current interior was designed by Projectiles architects.