High Quality Content by WIKIPEDIA articles! Hippos is an archaeological site in Israel, located on a hill overlooking the Sea of Galilee. Between the 3rd century BC and the 7th century AD, Hippos was the site of a Greco-Roman city. Besides the fortified city itself, Hippos controlled two port facilities on the lake and an area of the surrounding countryside. Hippos was part of the Decapolis, or Ten Cities, a group of cities in Roman Palestine that were culturally tied more closely to Greece and Rome than to the Near East.