In 2000 geophysical research, conducted by the German Archaeological Institute in Rome (directed by M. Heinzelmann), led to the discovery of large horrea to the east of the Palazzo Imperiale. They were built in the second century AD.
The west part of regions I and III with new discoveries, resulting from the geophysical research
by the German Archaeological Institute in Rome. Numbers indicate trenches. The horrea are at number 22.
Plan: Michael Heinzelmann.