hecatompedon (hundred-footer) apsidal edifice is the earliest in its type among those mentioned by Homer, and slightly after the hecatompedon temple of Hera on the island of Samos. It was flanked to the south by another apsidal building which also came to light: the so-called Daphniforio or "space with laurels" (7.5 x 11.5m) is the most ancient edifice in Eretria, related to the early cult of Apollo in Delphi.

At the centre of this edifice were