Aigai is one of the 12 Aeolian cities in Western Anatolia mentioned by Herodotus. The history of the city, which is located on a rocky hill dominating the environment, goes back to the 8th century BC. Excavations have been carried out extensively since 2004 in the city, which was largely damaged and repaired in the earthquake of 17 A.D, and was understood to be an important commercial center in the Hellenistic period. In 2018, excavations were carried out, especially in the Vomitorium (Theatre Entrance Building). The city walls were built according to the condition of the land. There are ruins such as the three-story agora and the walls carrying this structure, the parliament building, the stadium with terrace walls, the theater, and the Temple of Demeter within the walls.