About Rotary Jail Museum
Crawfordsville’s old Montgomery County Jail hides an astonishing Victorian machine inside its brick walls. The cells form a circular steel block mounted on rollers. A hand crank rotates the entire block like a carousel, lining up one wedge-shaped cell at a time with the jail’s only entrance.
The design was meant to let one jailer control access to every prisoner while reducing staff and escape opportunities. In practice, rotary jails developed serious safety problems, including the risk of crushed limbs when the mechanism moved. Most were eventually fixed in place or demolished. Crawfordsville’s example opened in 1882, held prisoners until 1973, and is the only surviving rotary jail whose original mechanism still operates.
The attached sheriff’s residence and jail now form a museum of local law enforcement and incarceration history. Demonstrations reveal the gears and heavy circular cage in motion, making the building feel less like a conventional museum and more like a giant piece of nineteenth-century machinery. Check the museum’s current calendar before traveling because public hours change seasonally.