http://agathe.gr/guide/odeion_of_agrippa.html
Odeion of Agrippa Late in the 1st century B.C. the Athenians were given money for a new marketplace by Caesar and Augustus, and the northern half of the old Agora square was filled with two new structures, ... It was a huge two-storeyed structure that must have dominated the square (Fig. 52). ... It was rebuilt in the early 5th century A.D. as part of a sprawling complex, perhaps a palace, with numerous rooms, a bath, and several courtyards, which extended southward all the way across the old South Square (Fig. 55). The Giants and Tritons were reused for a monumental entranceway, and their present position on high piers dates to this last phase of the building.
