Dunmahon Castle
Dunmahon Castle is a ruined late medieval tower house near Glanworth in County Cork, standing on a rocky mound above the River Funshion and surrounded by ancient oak and ash woodland in a remarkably wild and secluded setting. The castle is a narrow structure of considerable architectural interest, featuring a barrel-vaulted ground floor partially excavated into the rock, a second vaulted floor with attic space above, mural stairs in the south wall, a garderobe chute and a second entrance above the main west door, a feature seen in other west Cork tower houses of the period. Built before 1541, the castle was likely held by the O'Hennessy family as tenants of the powerful Roche lords who dominated this part of north Cork throughout the later medieval period. The castle sits within the broader heritage landscape of the Funshion valley, and despite its proximity to a road it remains largely concealed by vegetation, giving the site a particularly hidden and atmospheric quality unusual even among the many tower house ruins scattered throughout County Cork.