Large Rectangular Enclosure

Between the Grandi Magazzini di Settimio Severo and the Terme della Lanterna, magnetometry revealed an open space or courtyard (c. 60 m by 40 m) surrounded by ranges of rooms. In the northwest corner, there is a distinct rectangular structure (c. 12 m by 15 m) with additional room divisions. The function of this building remains unknown, and while its general configuration is somewhat reminiscent of traditional warehouses (horrea) found in Ostia, other functions are possible. 

Interpretation of the geophysical evidence for the Rectangular Building (highlighted in pink), lying immediately to the west of the Grandi Magazzini di Settimio Severo