Fort Jefferson Park and Monument mark the site of an advance outpost of General Arthur St. Clair, built in October 1791. It was named in honor of Thomas Jefferson, then Secretary of State. One of a chain of defensive forts built to protect army supplies from Indians, it served as a supply base throughout the campaigns of General St. Clair and General Anthony Wayne. It was abandoned in 1796. The monument is made of faced granite field boulders, six feet square and 20 feet tall. No part of the fort remains.

The site is open to the public.

The Hopewell Culture National Historical Park contains earthen mounds worked into geometric patterns. These mounds are believed to have been of social and ceremonial importance to the Hopewell culture between the years 200 BC and 500 AD. The Mound City Group, Hopeton Earthworks, Hopewell Mound Group, Seip Earthworks, and High Bank Works are located on 1,200 acres of land.

The park offers a 17-minute introductory film, exhibits with artifacts from the Mound City Group, guided tours, talks, self-guided interpretive trails, a 14-mile paved bike trail, Junior Ranger activities, hands-on activities, and educator workshops. Guided tours, talks, and educational activities require advance notice. The website offers two educational videos, a trivia game, an Ohio history curriculum guide, and a lesson plan.

The William Howard Taft National Historic Site contains the house in which Taft (1857-1930), 27th President of the United States and 10th Chief Justice, was born and raised. Taft's term (1908-1912) is remembered for trust-busting, promotion of the 16th Amendment, and global economic development efforts. The first floor of the Greek Revival structure houses period rooms, while the second floor is devoted to exhibits. Topics include both Taft himself and his family.

The site offers guided tours of the William Howard Taft Birth Home, exhibits, period rooms, ranger-led field trips, and Junior Ranger activities. The website offers lesson plans.

The Allen County Museum includes the main museum building, presenting displays on local history; the 1893 Victorian MacDonell House; a log house; and the John H. Keller Railroad Archives and the Elizabeth M. MacDonell Memorial Library.

The museum offers exhibits, research library archives, educational tours for school groups, and in-class traveling trunk outreach presentations.

The Granville Historical Society is dedicated to preserving the historical heritage of Granville, OH, and the surrounding area. The society owns and operates a local history museum, which showcases the society's impressive collection of historic artifacts, many of which were collected by the society as early as 1885.

The society offers exhibits, guided tours of the museum, and a collection of oral histories. The website offers visitor information, a history of Granville, and access to the society's oral history collection.

Caesar's Creek Pioneer Village is a living history museum, which consists of several restored log cabins. Topics covered include the Civil War and pioneer life.

The museum offers educational programs. Note that the museum is closed outside of special event hours. Check the event calender for school programs. Registration is required for participation.

Worthington Historical Society preserves the unique and colorful history of Worthington, Ohio, which was formed by westward-bound settlers from Western Connecticut. The society maintains four separate attractions, the Orange Johnson House Museum, the Old Rectory, the Doll Museum, and a society Library.

Each of the society's properties offers guided and self-guided tours, along with exhibits and occasional special events. The website offers a history of Worthington, visitor information, and an events calendar.

The Society operates its museum in the c. 1830 stone home commonly called "the Anchorage." It houses exhibits related to local history.

The museum offers exhibits.

The Geauga County Historical Society is dedicated to the preservation of the historical heritage Geauga County. The Society's primary project in order to aid in the preservation of history is the Century Village Museum, which is a large living history site featuring 23 historic structures.

The society offers guided and self-guided tours of the Century Village Museum, educational tours of the village, special exhibitions, a research library, and a summer program. The website offers visitor information, a brief history of the society and village museum, and an events calendar.