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
In 362 BC, Orontes, satrap of Mysia, based his revolt against the Persian empire at Pergamon, but was crushed. Only with Alexander the Great was Pergamon and the surrounding area removed from Persian control. There are few traces of the pre-Hellenistic city, since in the following period the terrain was profoundly changed and the construction of broad terraces involved the removal of almost all earlier structures. Parts of the temple of Athena, as well as the walls and foundations of the altar in the sanctuary of Demeter go back to the fourth century.