On the road leading to the Hittite site of karatepe, take some time to see the ancient Roman city of Hierapolis(Castabala) -not to be confused with the other Hierapolis, near Denizli. Hierapolis(Castabala) was mentioned by the elder Pliny(AD 23-79) around AD 70. There is a colonnaded street, theatre, baths and a hill fortress.