The medieval settlement included an inner city-citadel on a high rocky plateau, an outer city and unfortified suburbs.

Old Greek Inscription From an Ancient Fortress, Hints at Byzantine Christianity A team of Hebrew University archaeologists ...

"The walls of the Byzantine fortress will be uncovered in the excavations. There used to be a tremendous fortress here that covered an expanse of 6 hectares (14.8 acres)," Sevin told Anadolu Agency.

Among other monuments, the Stara Mitropolia Basilica and the fortress date from the Middle Ages, when this was one of the most important Byzantine towns on the west coast of the Black Sea. Wooden ...

It is also home to a Byzantine fortress as well as nearly 6,000 caves that surround the town and contain the remnants of Christian and Muslim worshipers.