Tiya is the most important of some 160 archaeological sites in the Soddo region, south of Addis Ababa, in Ethiopia. This is a site of an ancient Ethiopian civilization. Archaeologists have yet to determine the exact age of this civilization. What is visible in Tiya are their monuments, including carved stelae with strange symbols that have yet been interpreted.
The most outstanding monuments in Tiya are the standing stones or stelae that mark a prehistoric burial complex. The stelae are engraved with ancient symbols, most notably swords.
Tiya was inscribed as a World Heritage Site during the 4th session of the World Heritage Committee meeting in Paris, France, on 1-5 September, 1980.