The remains of this agora built by the Romans from 19-11 B.C. include columns & an octagonal tower. The Roman Agora (Greek: Ρωμαϊκή Αγορά) at Athens is located to the north of the Acropolis and to the east of the Ancient Agora.
The original Agora was encroached upon and obstructed by a series of Roman buildings, beginning with the imperial family’s gift to the Athenians of a large odeion (concert hall). The Odeon of Agrippa was built by him in around 15 BC, and measured 51.4 by 43.2 metres, rose several stories in height.