The circular barn, already a rarity among Midwestern farm architecture, is falling victim to nature, fire, age, and obsolescence. Among Indiana’s iconic rural landmarks, more than 220 round or polygonal barns once inhabited the Hoosier countryside. But in the state once touted as the “Round Barn Capital of the World,” fewer than a third remain.

Despite its scarcity, the round barn remains a rich part of Indiana’s agriculture heritage—an artifact from an age when the American farmer was just coming into his own. During a time when progressive farming was looking to innovation and experimentation to increase productivity and efficiency, the documentary reveals how the round barn played a central role in a rural revolution.