Clay, second half of the 1st century A.D.
Rome, Horti Sallustiani
Soprintendenza Archeologica di Roma, inv. 519389, 519390, 519391, 519394

In the area occupied in antiquity by the Horti Sallustiani, two pits have recently been found, inside of which amphorae were piled one atop another to form columns over 7 meters high. This structure served to improve drainage of the soil, and was probably part of the complex hydraulic system used to irrigate the gardens.