In the heart of the Peloponnese, Megalopoli has a large powerplant. it was an important ancient city, from which there remain some vestiges: in particular from its Tersilion, a large assembly, and of the largest theatre of Greece with 145m of diameter.
Photos from Megalopoli
Thersilion and ruins of Megalopoli
The ancient theatre of Megalopoli, the largest of Greece with 145m diameter