Where is the only underground prehistoric temple located?

The only underground prehistoric temple is located in Malta, specifically the Ħal Saflieni Hypogeum. This remarkable site dates back to around 4000 BC and is considered one of the most significant archaeological discoveries in the study of prehistoric Europe. The Hypogeum consists of a series of chambers carved out of limestone, serving as both a sanctuary and a burial complex.

The temple is notable for its advanced architectural features, including intricate stone carvings and an impressive layout that suggests a complex society capable of substantial construction projects. Its underground nature not only serves a funerary function but also implies spiritual beliefs surrounding death and the afterlife, which are central themes in prehistoric cultures.

The other options represent significant ancient cultures and structures but do not pertain to the unique characteristics of the Ħal Saflieni Hypogeum. Egypt is known for its grand pyramids and temples, Greece is famed for its classical temples above ground, and Turkey has various ancient sites, but none has the specific distinction of being an underground prehistoric temple like the one in Malta.