Symmes Mission Chapel, formerly at 5139 Pleasant Ave., Fairfield, was added to the National Register of Historic Places in 1980. The Ohio Historic Preservation Office of the Ohio Historical Society says "the Symmes Mission Chapel is significant as a unique embodiment of 19th century vernacular architecture in southwestern Ohio. Furthermore, it is one of the earliest physical manifestations of religious activity in Fairfield Township. The chapel's severe but distinctive design makes it a seldom used example of vernacular church architecture in this region. Its diminutive size, plain fenestration, architectural integrity, and lack of traditional church design elements contribute to its significance. The church congregation received its primary support from Benjamin Symmes, an important local settler and land developer. From 1843-1968 the chapel was used for religious and educational activities."