A style of masonry that calls for large, close-fitting, irregularly shaped stones, used typically in Mycenaean fortifications. The massive stone wall's gaps between the inner and outer faces of the huge stone boulders were filled with small stones and clay. It is named after the Greek mythical character Cyclops, thought by the Greeks to have built the walls of Tiryns, which are constructed in this fashion. The technique occurs widely elsewhere in the Mediterranean (Nuraghe, Naveta, Talayot, Torre), and was sometimes employed by the Inca and other Andean peoples.