Kos is not just about the sea, the sun and the fun. The visitor is worth spending some of his time to visit and admire the important sights of the island. You shouldn’t come to Kos and not visit to Asclepion, or admire the unique sunsets or have a taste of the local culture through events held each summer on the island. It is also worth to visit and get to know several other smaller sights that are scattered in throughout the island and uncover its history and its secrets. The passing of people and cultures on the island over the centuries is evident in every part and place of the island. Just as the city of Kos as in all settlements and towns. The ruins of the ancient city with the Hellenistic and Roman buildings , Asclepion , the Castle of the Knights , the Tree of Hippocrates, the Muslim Mosque of Lozia, the Castle of Antimachia , the temple of Apollo in Kardamena, Kefalos Castle , and dozens other sites from all historical periods , attracting hundreds of visitors every day . The Roman Auditorium is thought to have been one of the most crucial public buildings of ancient Kos. It was found by the Italian archeologist Laurenzi in an excavation conducted in 1929.