|Summary:||Large rectangular building; north of the Temple of Hephaistos and Athena in the Agora, on the Kolonos Agoraios.|
|Date:||ca. 320 BC - 280 BC|
17.62 m x 44.4 m.
Rectangular with buttressed walls, door opening east. Inside there were 2 rows of 8 supports forming 3 aisles. Large cisterns under the foundations held run-off water from the roof.
Probably used for storage, possibly of military equipment, thus the name "Arsenal." Construction dated to late 4th or early 3rd century B.C.