All but two were erected by Greek colonies to store valuable votive offerings.
The Treasuries were built on a natural terrace at the foot of the Hill of Cronus.
West to east the treasuries were dedicated by: Sicyon, Syracuse, Byzantion, Sybaris, Cyrene, Selinus, Metapontium, Megara and Gela.
It was holding valuable offerings, including items won in war.
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