The Megalithic Temples of Malta () are several prehistoric temples, some of which are UNESCO World Heritage Sites, built during three distinct periods approximately between 3600 BC and 2500 BC on the island country of Malta. They had been claimed as the oldest free-standing structures on Earth until the discovery of Göbekli Tepe. Archaeologists believe that these megalithic complexes are the result of local innovations in a process of cultural evolution. This led to the building of several temples of the Ġgantija phase (3600–3000 BC), culminating in the large Tarxien temple complex, which remained in use until 2500 BC. After this date, the temple-building culture disappeared.