From the erection of the Erechtheion to the end of antiquity, no new public buildings were erected on the Acropolis, with the exception of the small, circular temple of Rome and Augustus, whose architectural decoration quoted the Erechtheion. On the south Slope of the Acropolis, the Odeion was built in 160-170 AD, funded by Herodes Atticus.

Throughout the Roman period, the Acropolis retained the appearance it had in its heyday. It also preserved most of its dedications, unlike other Greek cities and sanctuaries, whose artistic treasures were plundered and transferred to Italy, mostly in order to adorn public buildings.

At the same time, a series of new dedications were added to the earlier ones. These were portraits of emperors, generals and other officials, portraits of philosophers, orators and priests, as well as images of individuals who benefited the city or distinguished themselves in athletic and other contests.

Portrait of Rhoemetalces or Sauromates II, kings of the Bosporus Kingdom. 150-125 BC