Ritchie County West Virginia has 6 places on the National Register of Historic Places including 1 place of National significance and 2 places of Statewide significance. Significant places include Old Stone House, Bank of Cairo and Old Stone House, Harrisville Grade School and Old Stone House.
Some of the country's most noteable architects helped create the Ritchie County places including Holmboe and Pogue, unknown, B&O Railroad and Forman and Putnam. Prominent architectural styles found in Ritchie Country are Classical Revival, Early Commercial and Early Republic.