Along with its outdoor exhibits, the Great Smoky Mountains Heritage Center has two indoor galleries: the main gallery and the transportation gallery. Half of the main gallery is dedicated to the region's Native American history, and the other to the region's pioneer and mountaineer periods. The center's transportation gallery interprets the region's evolving types of transportation, from wagons to railroads and automobiles. The center also includes a 100-seat auditorium and a 500-seat amphitheater.