The Ikom Monoliths are a series of volcanic-stone monoliths from the area of Ikom, Cross River State, Nigeria. Numbering 300, the Alok Ikom Monoliths are carved stones of between 1 and 6 feet high standing upright in circles, facing each others in groups with images and texts inscribed on them. The monoliths which have now been listed as UNESCO World Heritage Site are in form of a phallus and some of them feature stylized faces as well as decorative patterns and inscriptions. Although the carvings have not been deciphered, researchers believed that the inscriptions may represent a form of writing and visual communication. The monoliths were also believed to have been engraved sometime between the sixteenth and twentieth century.