to 1945. Following World War II, the Greek Archaeological Service took over excavation and restoration of the ruins. This included extensive reconstruction of the Temple of Pythian Apollo, which was extensively damaged by bombing and artillery installed there during the war. Excavation began in 1946 and continues today in the Acropolis Archaeological Park, which covers and is protected from any new construction. The extent of excavation is quite small and much awaits investigation. Aside from the known buildings, the theater and the Temple of Helios are believed to be located nearby but are not found. Site The Acropolis is situated on the highest part of the ancient city, sloping gently toward the east and bounded to the west by cliffs, upon which watch towers forming the city's perimeter once stood. Mostly dating from the hellenistic period, the monuments were built on stepped terraces, with substantial retaining walls. Though moderate in scale, the buildings have a rhythm and symmetry whose harmonious effects would have been enhanced by the natural landscaping typically suited to sacred space. Temple of Athena Polias and Zeus Polieus Located at the northern extreme of the Acropolis in an east–west orientation, this stately temple was dominated by Doric columned porticos on all sides and originally housed the written treaties the Rhodians held with other states. The temple was bounded by a stoa to the east. Temple of Pythian Apollo Smaller than the Temple of Athena Polias and Zeus Polieus, this structure boasts a similar east–west orientation but is located on the southern end, just west of a large rectangular terrace. Part of the northeast side of this porous peripteral temple has been restored and its retaining wall has survived. It was built in the second century BC in Doric style and was situated in an enclosed precinct. Presenting a distinct profile, in the ancient time it was a landmark for the ships sailing to Rhodes, and even today the reerected columns are visible from the harbor. Nymphaea Just southeast of the Temple of Athena Polias and Zeus Polieus are four subterranean structures cut into the rock, featuring entrance steps, passages, a large opening in the central roof, along with water cisterns, foliage and interior niches for statuettes. Referred to as "nymphaea" due to the association of nymphs with caves and water, these grottoes were used for worship and recreational purposes. Local archaeological finds include figurines of Aphrodite or