2. The Philippeum near the north-west corner of the Altis was dedicated by Philip of Macedon, after his victory at Chaeronea (338 B.c.), illustrating how his position and power enabled him without risking any revolt of Hellenic feeling to erect a monu ment of the overthrow of Greek freedom in the very heart of the Panhellenic sanctuary. The building had a circular Ionic colonnade about 15 metres in diameter, raised on three steps enclosing a circular cella, with fourteen Corinthian half-columns. It con tained portraits by Leochares of Philip, Alexander and other members of their family, in gold and ivory.
3. The Exedra of Herodes Atticus at the north limit of the Altis by the N.E. angle of the Heraeum consisted of a half-dome of brick (54 ft. diam.), containing twenty-one marble statues, representing the family of Antoninus Pius, of Marcus Aurelius and of the founder. In front was a drinking trough, its ends adorned by very small temples with circular colonnade.
I. Olympia, besides its religious character, originally was the centre of a political amphictyony. So, like a Greek city, it should have a public hearth, where fire should always burn, and where Olympia should exercise hospitality. The Prytaneum was at the
N.W. corner of the Altis, close to the Heraeum. It was a square building containing a chapel of Hestia at the front.
2. The Porch of Echo, also called the "Painted Porch," ex tended Ioo yd. along the east Altis wall. A single Doric colonnade, on three steps, open towards the Altis, afforded a place from which to view processions and the sacrifices at the great altar. Built in the Macedonian period, it replaced an earlier portico. In front were pedestals for votive offerings.
3. The Agora was that part of the Altis which had the Porch of Echo on the E., the Altar of Zeus on the W., the Metroum on the N., and the precinct of the Temple of Zeus on the S.W. Here stood altars of Zeus Agoraios and Artemis Agoraia.
4. The Zones were bronze images of Zeus, erected out of the fines exacted for breaches of the rules of the contests. They stood at the N. side of the Agora, in a row, from the Metroum to the gate of the private entrance into the Stadium. Sixteen pedestals were here discovered in situ.