An Asclepieion (plural "Asclepieia") was a therapeutic center built around a temple of Asclepius -- known as the ancient Greek god of medicine. This ancient healing center is an impressive archaeological site, one of the first ancient hospitals and medical schools in the world, built according to the principles created by the great physician Hippocrates (c. 460 BC - c. 370 BC) and later directed by his sons Thessalus and Polybus. Hippocrates, the "Father of Modern Western Medicine", was born on this island and (according to ancient sources) is believed to have thought medicine to his disciples here, first in a place called Astypalea of Kos (near the small town of Kefalos), and later in the Asklepieion. Hippocrates divided the art of medicine from the practices available in the ancient temples of Greece and established the first rules of scientific diagnosis and therapy. He is also the author of the Hippocratic Oath and is believed to have written some of the books included in the Hippocratic Corpus (a collection of ancient writings on medicine). A large museum and garden dedicated to Hippocrates can be visited at The International Hippocratic Foundation, between the Asclepieion and the town of Kos.
The current tree is only about 500 years old, but may possibly be a descendant of the original tree from 2400 years ago. According to the legend, Hippocrates of Kos taught his pupils the art of medicine under this Platanus tree.
A castle of Knights Hospitaller from 14th-16th centuries. This castle dominates the port and is where the impressive Avenue of the Palms starts. The entrance to the castle is permanently closed after the earthquake (as of July 2019).
Mastichari Μαστιχαρι
Mastihari is on the northwestern side of the island. Its main beach is sandy. During the summer season the part nearest to the village has beach furniture on it. However they end near a wind surfing centre, beyond which the beach is open. Other than the fishing boats from the local harbour, there are no motorised power boats - making for a peaceful and relaxing environment.