Just north of Prosperous in the townland of Ballynafagh lie the ruins of two churches. The larger is the former COI church of Ballynafagh built in the 1830’s and was maintained until the 20th century but then fell into disuse and was eventually de-roofed in 1985. The smaller ruins are the remains of the original medieval church which sit on a mound at the South-East corner of the larger church.