State Agora locates on upper city of Ephesus and was used for a political centre were governmental discussions were carried out and trade deals done in 1th century BC.
State Agora had a rectangular form and was surrounded by stoas on three sides and decorated with sculptures. The stoas were collonaded and roofed structures which were providing shelter during rainy days and hot summer days. These stoas were also used by philosophers were giving courses to their students. There was also a temple dedicated Egyptian goddess Issis, which was built by the Egyptian merchants in the centre of the building.
State Agora which can be seen today is not first agora which was built on this location. The first Agora was built in 6th centruy Bc in Helenistic style is buried 2 m below the present Agora today. Little excavation shows us Helenistic Agora had square shape.
State Agora had a the big cistern, which was for collecting the rain water and distribute water to buildings with baked clay pipes. These pipes were also called terracota pipes can be seen today. Some pipes have still the white limestones which means these pipes were placed horizantaly under the land for carrying the water and some of them were vertically. Beside carring water for daily use they also took dirty water to sewage system with these pipes.