Pergamon Bridge
The Pergamon Bridge is a Roman substruction bridge over the Selinus river (modern "Bergama Çayı") in the ancient city of Pergamon (today Bergama), modern-day Turkey. The wide structure, the largest of its kind in antiquity, was designed during Hadrian's reign (AD 117–138) in order to form a passageway underneath a large court in front of the monumental "Red Basilica" temple complex. The two intact tubes, which consist of supporting walls covered with barrel vaults, still serve their purpose to this day.
Pergamon Altar
Already Attalos I began to remodel the acropolis of Pergamon. In the course of time the original structures were augmented by a Dionysus temple, a theater named after Dionysus, a heroon, an upper agora for the city, and the great altar known today as the Pergamon Altar. There were also several palaces, and a library in the Athena sanctuary.