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Greece - Kos City - Municipal Museum
Mozaique floor (2nd or 3rd century after Chr.) representing the arrival of Aesclepios on Kos welcomed by Hippocrates and an inhabitant of the island Kos.

Aesclepios: Son of Apollo, first doctor and father of medicine. Asclepios was so talented that he could raise people from the dead. When Zeus heard that he had done this for money he killed both Aesclepios and his patient with a thunderbolt but afterwards felt badly about it and brought him back to life. The snake is the sign of Aesclepios because every year it sheds its skin symbolizing restoration. His sons, Podaleirius and Machaon were the doctors who healed the wounds of the Greek soldiers at Troy. The most famous temple to Aesclepios was in Epidauros but there were others all over Greece since any healing was attributed to the God.

Fore more info:
http://www.greektravel.com/greekislands/kos/hippocrates.html