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
From the beginning of the reign of Philetairos, civic events in Pergamon were concentrated on the Acropolis. Over time the so-called 'Upper agora' was developed at the south end of this. In the reign of Attalos I, a Temple of Zeus was built there. To the north of this structure there was a multi-story building, which propbably had a function connected to the marketplace. With progressive development of the open space, these buildings were demolished, while the Upper Agora itself took on a more strongly commercial function, while still a special space as a result of the temple of Zeus. In the course of the expansion of the city under Eumenes, the commercial character of the Upper Agora was further developed. The key signs of this development are primarily the halls built under Eumenes II, whose back chambers were probably used for trade. In the west, the 'West Chamber' was built which might have served as a market administration building. After these renovations, the Upper Agora thus served as a centre for trade and spectacle in the city.