|Summary:||Monumental altar in center of Sanctuary of Hera|
|Date:||560 BC - 550 BC|
Foundations: 16.5 x 36.5 m.
A three-sided open-air platform with a broad staircase in antis on its west side. N and S walls serve as antae with sculptured pilaster capitals (see 3 details).
At least 7 earlier altars beneath present structure, the oldest dating to the Late Bronze Age. The limestone of the Archaic altar (possibly built by Rhoikos) was replaced with marble in early Roman period and the Archaic reliefs were copied in the old style.