In antiquity, Delphi and Mount Parnassus belonged to Phocis. The cities of Phocis that had till now been neglected by archaeologists,because of the mesmerizing splendour of the Pythian sanctuary, have started attracting travellers and archaeological interest. A tour though these cities by necessity starts from the valley of the Kephissos river which flows from the Lilaea area, where important remnants of religious architecture survive as well as the ruins of the city of Lilaea and its acropolis. The cities of Erochos and Tithorea have been located further to the NE, the latter fortified with strong walls. Among the other most important known cities is Dalitsa, a religious center and the seat of the Phocian Assembly, secured with a well fortified acropolis.