The Asklepion of Pergamon, Turkey
Built as a sanctuary to honour Asklepios, the Greek god of medicine and healing whose trademark snake and staff are the well-known international symbols of modern medicine today, the Asklepion's magnificent ruins are near the present-day Turkish city of Bergama.
Image 1 of 6: Patients entered the healing centre along the 820m Sacred Way or Via Tecta, the ancient road linking the Asklepion and Pergamon's acropolis. Photo / Justine Tyerman