[1] The archaeological site known as Kasterc, located approximately 12 kilometers to the northwest of Theranda, reveals a complex history spanning various epochs.

It has been a significant center of archaeological interest, with its origins tracing back to the prehistoric era, specifically the Copper Age when it served as a fortified settlement.

Subsequently, during the reign of Emperor Justinian, it underwent transformation and was reconfigured into a formidable stronghold.

These excavations yielded remarkable discoveries, including the remnants of an early Christian church and an array of valuable movable archaeological artifacts.

Among the findings were iron working tools, pottery, jewelry such as earrings and bracelets, as well as coins, offering valuable insights into the historical significance of Kasterc throughout its diverse periods of occupation.