What Is the Round Building at Delphi’s Sanctuary of Athena Pronaia?
The much-photographed circle of columns at Delphi belongs to the sanctuary of Athena Pronaia. Apollo’s sanctuary, where visitors consulted the oracle, stands on the other side of the modern road. Keeping the two places distinct makes Delphi’s plans and the museum’s sculpture labels much easier to follow.

What was the Tholos used for?
Tholos describes the building’s circular form. Its precise ancient purpose remains uncertain. The fourth-century builders set a round chamber inside a ring of twenty Doric columns and gave it an entrance on the southern side. Look at a plan and trace the two circles before looking at a photograph. The few upright columns in the familiar view mark a small part of the original circumference.
What was carved above the outer columns?
Square panels carried scenes of battles with Amazons and centaurs. The figures were carved deeply enough to stand well out from the background. Pieces of the sculpture survive in the Archaeological Museum of Delphi. A partial restoration in 1938 raised a section of the exterior. Comparing a photograph of that section with the museum pieces helps put the sculpture back at its original height in your imagination.
Can I walk down to Athena Pronaia on my visit?
Check directly with the archaeological site before planning the walk. Greece’s winter 2026–27 schedule lists the sanctuary as closed while regional pedestrian access restrictions remain in force. The main site and the museum have separate entries in that schedule. If access is still restricted, use the official site plan and the museum display to explore Athena Pronaia without approaching a closed path.