Trilithon - (or trilith) a structure consisting of two large vertical stones (posts) supporting a third stone set horizontally across the top (lintel). It is commonly used in the context of megalithic monuments. The most famous trilithons are those of Stonehenge in England and those found in the Megalithic temples of Malta. A Megalith is a large stone that has been used to construct a structure or monument, either alone or together with other stones. Megalithic describes structures made of…