Bulgarian archaeologists have renewed Tuesday excavations at the Tatul village, where they believe that a unique temple of mythical royal descendant and artist Orpheus is located.
The team, led by renowned Professor Nikolay Ovcharov, will work at the site until the end of July.
It is thought that the temple has been used around the 5th century B.C.
Orpheus is looked upon as one of the chief poets and musicians of antiquity, whose lyre mastery could charm the wild beasts and even draw trees and rocks from their places and stop rivers from flowing.
He has also become a key figure of Greek legend, although various sources mention that Orpheus was borrowed by the Greeks from their Thracian neighbours.