A megalith is a large stone that has been used to construct a
structure or monument, either alone or together with other
stones. The word "megalithic" describes structures made of such
large stones, utilizing an interlocking system without the use
of mortar or cement, as well as representing periods of
prehistory characterised by such constructions. For later
periods the term monolith, with an overlapping meaning, is more
likely to be used. The word "megalith" comes from the Ancient
Greek "μέγας" (megas) meaning "great" and "λίθος" (lithos)
meaning "stone." Megalith also denotes an item consisting of
rock(s) hewn in definite shapes for special purposes. It has
been used to describe buildings built by people from many parts
of the world living in many different periods. A variety of
large stones are seen as megaliths, with the most widely known
megaliths not being sepulchral. The construction of these
structures took place mainly in the Neolithic (though earlier
Mesolithic examples are known) and continued int