A barn-red mill nestled among green trees beside blue waters rolling over a rock dam create the colorful setting of one of Missouri's most picturesque historic sites. Dillard Mill State Historic Site interprets one of Missouri's best-preserved, water-powered gristmills. Completed in 1908, Dillard Mill sits along Huzzah Creek and was the second mill built at that site. The first, Wisdom's Mill, built in the 1850s, was destroyed by fire in 1895. Innovations in the new, modernized mill included steel roller mills for grinding the wheat and a turbine to power the mill. For years, farmers brought their grain to the mill to be ground into flour and eventually livestock feed. The mill ceased operation in 1956. Today, most of the original machinery is still intact and operational. A turn of a wheel brings the machinery back to life during tours of the mill, which are given year-round.

The site offers tours.

The Park includes the Peirce Barn and Mill and Old Stone House. Peirce Barn and Mill were built in the 1820s, and operated commercially until 1897. The U.S. Government acquired the mill as part of Rock Creek Park in 1892. The Old Stone House, one of the oldest known structures remaining in the nation's capital, is a simple 18th-century dwelling built and inhabited by common people.

NOTE: The Peirce Mill is currently closed for restoration.

The site offers tours, educational programs, and occasional recreational and educational events; the Old Stone House offers tours; the Peirce Barn offers tours.

Early settlers first established Montauk as a self-sufficient community in the early 1800s. A gristmill, built in 1896, is open seasonally for tours. This historic site was a vital part of the Montauk Community into the 1920s. The "Old Mill" had elaborate milling machinery. Much of it is still located there.

The park offers tours and occasional educational and recreational events.

Battle of Athens State Historic Site interprets the northernmost Civil War battle fought west of the Mississippi River. Some of the land and buildings included in the site were part of the once-thriving town of Athens. Located on the Des Moines River, 19th-century Athens boasted about 50 businesses before the Civil War, including a large mill that produced flour, cornmeal, lumber, cotton, and woolen goods. A large brick hotel, the St. Louis Hotel, was one of many other buildings on the Athens waterfront. Today, only a few structures remain. The historic site administers the remaining buildings in the town of Athens, including the Thome-Benning House, which was pierced by a cannonball during the battle. Exhibits and tours interpret the battle and the history of the town.

The site offers exhibits, tours, occasional living history events, and occasional educational and recreational events.

The Youngstown Historical Center of Industry and Labor provides a dramatic overview of the impact of the iron and steel industry on Youngstown and other Mahoning Valley communities. The building, designed by renowned architect Michael Graves in 1986, houses the museum's permanent exhibit, "By the Sweat of Their Brow: Forging the Steel Valley," which explores labor, immigration, and urban history, using videos, artifacts, photographs, and reconstructed scenes. Objects on display range from workers' tools and clothing to "last heats," the last batches of steel produced at each of the mills before they closed. Hundreds of photographs, some more than 30 feet long, are used throughout the museum. Videos examine topics such as housing, recreation, and urban history. Life-size scenes—including a mill's locker room, part of a company-built house, and a blooming mill, where steel ingots were shaped for further processing—help visitors understand steelmaking and the lives of steelworkers.

The center offers exhibits, tours, research library access, and educational programs.

Indian Mill, built in 1861, is the nation's first educational museum of milling in its original structure. The restored three-story structure replaces the original one-story building that the U. S. government built in 1820 to reward the loyalty of local Wyandot Indians during the War of 1812. Many exhibits are placed around the original mill machinery. The restored miller's office displays the history of milling from prehistoric times to the present.

The mill offers exhibits and tours.