4 km from KOs town is the sanctuary of Asklepion. A Church with a school and a hospital was built after the death of Hippocrates in 357 BC On the lower terrace of the sanctuary – the remains of the surrounding three sides of porches and powerful wall supporting the middle terrace. On the middle terrace of the altar and several minor temples dedicated to Apollo. On the upper terrace of the temple of Asclepius, which has a monumental staircase.

Here the doctors, who are also priests of the cult of Asclepius, practiced methods of Hippocrates. Here gathered the sick and afflicted from all edges. The symbol of the cult of Asclepius was a snake. Once the snakes were attracted to search for certain types of medicinal plants. And to this day the snake is the emblem of physicians.