Δελφοί - Delphi (Greece) 

Short visit at the archaeological site of Delphi.
"Delphi (in legend previously called Pytho (Πυθώ), was an ancient sacred precinct and the seat of Pythia, the major oracle who was consulted about important decisions throughout the ancient classical world. The ancient Greeks considered the centre of the world to be in Delphi, marked by the stone monument known as the Omphalos of Delphi (navel).
According to the Suda, Delphi took its name from the Delphyne, the she-serpent (drakaina) who lived there and was killed by the god Apollo (in other accounts the serpent was the male serpent (drakon) Python).
The sacred precinct occupies a delineated region on the south-western slope of Mount Parnassus." wikipedia