Dikili leads the way to the ancient city of Pergamum, also known as Bergma. This city thrived under the Romans from the 2nd century BC to the 2nd century AD. One of the most fascinating aspects of the ancient site is the medical complex, Asklepieon, where advanced psychological treatments were practiced. The complex was named after Asklepois, the god of medicine, and treatments included extended periods of sleep, massage, therapeutic baths and observing comedy theater. Elsewhere on the site are temples, baths, a gymnasium and a library containing 200,000 ancient scrolls made from Egyptian papyrus.