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
The most famous structure from the city is the monumental altar, which was probably dedicated to Zeus and Athena. The foundations are still located in the Upper city, but the remains of the Pergamon frieze, which originally decorated it, are displayed in the Pergamon museum in Berlin, where the parts of the frieze taken to Germany have been installed in a partial reconstruction.