Before or after your trip to Delphi, stop at another UNESCO World Heritage Site: Hosios Loukas Monastery. Òssios Loukás is located less than 20 miles from Delphi near the small village of Steiri. This is one of the three historic Monasteries of Daphni. The oldest is Daphni Monastery in Attica near Athens. The third, Nea Moni (New Monastery), is on Chios island in the northern Aegean Sea. Fans of Byzantine religious architecture and art will want to visit all three.