The Knocknakilla megalithic complex (Grid Ref: W297843) that lies between Macroom and Millstreet, in County Cork, Ireland. It is set in blanket peatland on the north-west upper slopes of Musherabeg mountain and is thought to be 3500 years old. The area is rich with archaeological artifacts, and nearby are two cashels, a ringfort, two fulacht fiadh, a possible souterrain and a circular enclosure. The complex is best known for its large phallic and now leaning portal stone.