Beginning with the first century B.C. the only kind of Greek theater which was newly built was what Dörpfeld calls the Graeco-Roman type, cf. the theaters at Termessus (Fig. 58)[216] and Aspendus in Asia Minor. During this period several Hellenistic theaters (e.g., those at Priene, Magnesia, Tralles, Pergamum [Fig. 28], Athens [?], Syracuse, Pompeii, etc.) were remodeled to the Graeco-Roman type. That this is a Greek and not a Roman form of theater is proved by the fact that its orchestra, though no longer a complete circle, yet exceeded a semicircumference (see p. 77, above). These theaters had a stage varying from eight to ten feet in height and from eleven and a half to twenty in depth. The scene-buildings were of three stories—hyposcenium, logium, and theologium (Fig. 24). The first presented to the spectator an undecorated wall with doors leading into the orchestra; the second was terminated by a proscenium with columns and statues. The proscenium was seldom so simple as in the earlier theaters but was an ornamental façade with projections and recesses (Fig. 59), which added materially to the area of the stage. [Illustration: FIG. 59.—The Proscenium of the Graeco-Roman Theater at Ephesus See p. 111, n. 2] [Illustration: FIG. 64.—The Theater at Priene as Seen from the Southeast See p. 113, n. 1] Hellenistic theaters could be remodeled either (_a_) by building a new (undecorated) wall in front of the old proscenium and roofing the two over to form a stage or (_b_) by moving back the front wall of the scene-building slightly and constructing a stage between this and the old proscenium.[217] In either case, a new (decorated) proscenium would be erected at the back of the stage. In the latter case, the columns of the old proscenium would either be removed and a blank surface built in their stead or they would be walled up. As already explained (see p. 86, above) this was done because the floor of the stage was thought of as representing earth or a street. At Priene (Fig. 64) the Hellenistic columns were left standing, but this is the sole instance of a Graeco-Roman hyposcenium having columns.