Aizanoi at Cavdarhisar This city is in the Cavdarhisar township. The city experienced its golden age in the second and third centuries AD. It became the centre of episcopacy in the Byzantine era. The visible remains of the city are mostly derived from the period of the Roman Empire. The city has significant remains such as the Zeus Temple, the Complex of Stadium-Theatre, Macellum, Portico Street, the bridges and dam, two necropolises, odeon, the Roman Baths
The Macellum in Aizanoi dated to the midst of 2nd century AD is one of the first exchange stock markets in the world. Inscriptions on the Macellum showing the prices of all goods sold in the markets of the Imperial survived till today and can be read completely. These inscriptions have been used as a reference source for the other similar inscriptions unearthed during the excavations.
The Stadium with a capacity of 13500 people and the theatre with a capacity of 20.000 people were constructed adjacently and as such it is unique in the ancient world. The form of the complex erected in Aizanoi is not seen elsewhere in the ancient times.
The structure of the Temple is one of the best preserved Zeus Temples in the world. There is an area covered with vaults under the temple. The temple has an unusual feature in Anatolia with this plan. Since the space surrounded by the columns in the temple is marble-covered, the Zeus Temple in Aizanoi is unique in the pseudodipteros plan. The other temples in this plan have a wooden roof cover. The temple is among the rarest ancient buildings in Anatolia which have survived till today by preserving its original form.