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. Given the stones' relation to both the rising and setting sun, it is thought that they were aligned with purpose and functionality in mind, likely as calendars to early farmers, probably related to harvest or fertility ceremonies.