The Northern Illinois Fire Museum presents the history of the U.S. fire service. Collections include at least 31 historic pumpers, dating from 1856 through 1977.

The museum offers exhibits.

The Farnsworth House is one of the most significant architectural works of the 20th century. The home, built in 1951, was conceived as a country retreat for Dr. Edith Farnsworth in 1945. The structure "represents the ultimate refinement of [architect] Mies van der Rohe's minimalist expression," and is "perhaps the fullest expression of modernist ideals," according to the home's website. Today, the home stands as a historic house museum and monument to architectural excellence.

The house offers guided tours, while the website offers a history of the house, a brief biography of Mies van der Rohe, and visitor information. In order to contact the website via email, use the "contact" link located at the bottom of the webpage.

Postville Courthouse is a reproduction of Logan County's first seat of government. Constructed in 1840, the original building until 1848 was one of the courts in which Abraham Lincoln argued cases while traveling the historic Eighth Judicial Circuit. The first floor has a reception and orientation room and an exhibit gallery. On the second floor are rooms representing an 1840s courtroom and a county office.

The courthouse offers exhibits, tours, and occasional recreational and educational events.

The Ernest Hemingway Foundation of Oak Park works to preserve the birthplace and childhood home of the Earnest Hemingway. Hemingway was born in a small home located outside Chicago in Oak Park, Illinois. The foundation operates the Hemingway's childhood home as a historic house museum and also maintains a museum on Hemingway's life a short walk away.

The foundation offers exhibits and presentations in the museum, group and individual tours of the Hemingway birthplace, and traveling exhibits. The website offers visitor information, a brief biography of Hemingway, and links to literature by Hemingway.

The Greater Peoria Sports Hall of Fame memorializes and celebrates outstanding sports figures from the greater Peoria area, Illinois.

The hall offers a display of plaques in the Peoria Civic Center.

The Aurora Regional Fire Museum, housed within a fire station, presents the history of firefighting in Aurora, Illinois and surrounding counties. The museum also disperses information on fire prevention and safety. Collections include over 100 objects on display and the official archives of the Aurora Fire Department.

The museum offers exhibits; educational programs on the museum collections, architecture, museums, and the Great Chicago Fire of 1871; and guided tours.

Bryant Cottage was built in 1856 by Francis E. Bryant (1818–1889), a friend and political ally of Senator Stephen A. Douglas. According to Bryant family tradition, on the evening of July 29, 1858, Douglas and Abraham Lincoln conferred in the parlor of this house to plan the famous Lincoln-Douglas Debates. The one-story, four-room wood frame cottage has been restored and is interpreted as an example of middle-class life in mid-19th-century Illinois. The furniture on display is of the Renaissance Revival style, appropriate for a small-town family of the mid-19th century.

The site offers tours and occasional recreational and educational events.

In partnership with the Princeville Civic Association, the Society operates the Princeville Heritage Center, a 15,000-square-foot facility which features living interpreted displays of antique agriculture equipment, steam-powered tractors and threshers, area artifacts, automobiles, sporting goods, and quilting. In addition to the original facility, the Society has also erected a second 8,400-square-foot building for agricultural equipment display. It displays old photographs, household items, area artifacts, steam-powered tractors, threshing equipment, grain binders, quilting, automobiles, gas engines, and numerous other items.

The center offers exhibits.

This 1740 building is historically significant as the oldest courthouse in Illinois and the only one remaining from the state’s territorial period (1787–1818). It is architecturally significant as an example of the French Colonial vertical log poteaux-sur-solle ("post-on-sill") construction technique. Inside are three exhibit rooms and another furnished to represent the courtroom in the 1790s. Exhibits in the Courthouse depict issues that came before the court around 1800 and a history of the structure as it was moved in the early 20th century to St. Louis and Chicago before its eventual return to Cahokia.

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

The Vandalia State House, the fourth Illinois statehouse, served as the capitol from 1836 until 1839 and is the oldest surviving capitol building in the state. The first floor contains a large entry hall and rooms representing the offices of the Auditor, Treasurer, and Secretary of State, as well as the Supreme Court chamber. The second floor is composed of a central hall and recreated House and Senate chambers, each of which contains a visitor gallery reached by staircases.

The site offers an exhibit, tours, and occasional recreational and educational events.