After the death of Lysimachus, Philetaerus took advantage of this wealth and founded the independent dynasty of Attalid Kings which later became the centre of Hellenistic civilization. With the success of the two kings Attalus I and Eumenes II, Pergamum reached the highest point of its power. However during those time Rome and the Hellenistic leaders united. After that Pergamum became a very powerful kingdom by Attalus I including Mysia, Lydia, Caria, Pamphylia and Phrygia. He not only extended the borders but also decorated the capital city with architectural splendors. Eumenes II improved the city culturally. King Attalus III bequeathed the territory to the Romans who made the city rich in art and culture poor in politics and economy. The city went through the Arab, Byzantine and finally the Turkish period in the 14C. In Hellenistic period the ancient city made an intellectual progress with the famous sculpture school and public buildings and monuments. Also Pergamum played an important role during the reign of the Romans.

The foundation of acropolis in Pergamum depended on social and cultural activities which we can consider it to be the daily life. Because of this, buildings in Pergamum were designed to be used in daily life. More than religion socialization was important as a proof even the temples were one of the meeting places of people where they can join in social affairs just like other large buildings which were designed for this purpose. Pergamum had the fame to be the first city who showed reaction to the functional urbanism of Hippodamus as they preferred ornamental urbanism. Acropolis buildings were built and designed with the aim of impressing the ones viewing the city from the valley. All buildings except the Trajan Temple were built in the reign of the Hellenistic emperors which are mostly made of andesite and rarely marble. Heroon in Pergamum was the shrine in which the kings especially Attalus I and Eumenes II were worshipped.