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 concrete, 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" (transl. megasmeaning "great") and "λίθος" (transl. 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 into the Chalcolithic and Bronze Age.

In the centre of Senegal exists a megalithic zone which spreads across 36,000 km2. Around 30,000 monoliths have been discovered aging from the 2nd Century BC as far back as the 16th Century BC. These stones, arranged in a lateral conglomerate, marks the gravestones or tombs of the area's ancestors. These monoliths often have very particular forms which has given the site of Soto (in the region of Kaolack, Senegal) the name of "Stone Lyre"

This object is part of "Scan The World". Scan the World is a non-profit initiative introduced by MyMiniFactory, through which we are creating a digital archive of fully 3D printable sculptures, artworks and landmarks from across the globe for the public to access for free. Scan the World is an open source, community effort, if you have interesting items around you and would like to contribute, email stw@myminifactory.com to find out how you can help.