Standing in the center of downtown Mason, this 100-year-old-plus courthouse was placed on the National Register of Historic Places in 1971. A complete renovation of the building was finished in 1993. Ingham County is the only county in the United States in which the capital is not located in its county seat. The capital is located in Lansing, while its county seat is located in Mason
- Hours of Operation: Open Mon.-Fri. 8 a.m. – 5 p.m. No tours available on Wed. Admission: Free. Please call ahead to schedule group tours.