Epirus

Epirus is a geographical and historical region in southeastern Europe, shared between Greece and Albania. It lies between the Pindus Mountains and the Ionian Sea, stretching from the Bay of Vlorë in the north to the Ambracian Gulf in the south. It is said in The Mark of Athena that the House of Hades - an underground temple dedicated to the god Hades and his wife Persephone - is located somewhere in Epirus. The mortal side of the Doors of Death is located in the temple.