Archaeologists Find Exquisite Medieval Ring with Obsidian Gemstone in Bulgaria’s Rock City Perperikon, Complete Excavations of Its Acropolis
A massive gold-plated silver ring with an obsidian gemstone dating from the Late Middle Ages has been discovered by the archaeologists excavating the ancient and medieval rock city of Perperikon (Perperik) near the southern Bulgarian city of Kardzhali in the…
