Metropolis of Pergamon
The Metropolis of Pergamon () was an ecclesiastical territory (diocese) of the Ecumenical Patriarchate of Constantinople in western Asia Minor, modern Turkey. Christianity in the city of Pergamon (modern Bergama), was introduced already from 1st century AD, while the local Christian community comprised one of the seven Churches of Asia mentioned at the Book of Revelation, written by John of Patmos. The bishopric of Pergamon was twice promoted to a metropolis: during the 13th–14th centuries, as well as for a short period in 1922. Today the "Metropolis of Pergamon and Adramyttium" is the see of a titular metropolitan.
Pergamon
Pergamon is a good example of a city that expanded in a planned and controlled manner. 
Philetairos transformed Pergamon from an archaic settlement into a fortified city. He or his successor Attalos I built a wall around the whole upper city, including the plateau to the south, the upper agora and some of the housing - further housing must have been found outside these walls. Because of the growth of the city, the streets were expanded and the city was monumentalised.
Under Attalos I some minor changes were made to the city of Philetairos.
During the reign of Eumenes II and Attalos II, there was a substantial expansion of the city. A new street network was created and a new city wall with a monumental gatehouse south of the Acropolis called the Gate of Eumenes. The wall, with numerous gates, now surrounded the entire hill, not just the upper city and the flat area to the southwest, all the way to the Selinus river. Numerous public buildings were constructed, as well as a new marketplace south of the acropolis and a new gymnasion in the east. The southeast slope and the whole western slope of the hill were now settled and opened up by streets.