The Erechtheion stands in a part of the Acropolis dense with religious associations. Its unequal levels and projecting porches respond to a setting that could not be treated as an empty building plot. Sacred places and inherited traditions had to be accommodated.
Constructed in the closing decades of the fifth century BCE, the building is conventionally understood in relation to the cults of Athena Polias and Poseidon-Erechtheus, among others. The Acropolis Museum presents the eastern chamber as the home of Athena’s old wooden image and the lower western area as a setting for several cults. The precise reconstruction of internal arrangements remains an active subject of scholarship.
Pausanias’s account connects this area with the olive, the marks of Poseidon’s trident, and salt water. The story of the divine contest was therefore encountered through particular features of the sanctuary. Myth was attached to things that visitors could be shown.
The south porch is famous for the six female figures conventionally called Caryatids. Their beauty can draw attention away from the rest of the building, but the porch belongs to a larger architectural and religious arrangement. The museum’s surviving figures also reveal the importance of conservation: outdoor copies and protected originals serve different purposes today.
Read the Erechtheion as evidence of accommodation. A city could build anew while preserving older obligations and sacred associations. Its complexity is part of its meaning, and a useful reason to resist treating the Acropolis as a single temple with a single ritual function.