Archaeologists have discovered an unusual bronze mechanism inside an ancient Thracian temple in southern Bulgaria. The object features four curved hooks attached to a ring, but researchers have yet to determine its purpose. The discovery took place near the village of Vasil Levski, where archaeologists are excavating a fortified settlement dating mainly to the sixth and fifth centuries B.C. Researchers believe the site may have served as an early royal center of the Odrysian Kingdom.
Associate Professor Kostadin Kisyov, director of the Regional Archaeological Museum in Plovdiv, leads the excavations. He has investigated the settlement intermittently for nearly three decades.
Bronze mechanism raises questions about its ancient use
Kisyov explained that his team had never encountered an object of this kind before. Archaeologists found the mechanism in the temple’s entrance chamber, known as the pronaos. Its four hooks have backward-pointing tips resembling fishing hooks. Kisyov suggested that the object may have held hanging lamps made from clay, bronze, or glass. However, researchers have not found the chains that would have supported such an arrangement.
Another possibility involves fishing. Although the hooks resemble fishing equipment, their large size makes their intended use difficult to explain. The settlement stands near the Stryama River, a tributary of the Maritsa. Kisyov suggested that equipment of this size may have been more suitable for larger rivers, including the Maritsa or Danube, or possibly the sea. Neither theory has been confirmed.
Ancient Thracian city reveals Greek connections and religious history
The settlement covers more than three hectares along the southern foothills of the Balkan Mountains. According to Karlovo Municipality, it includes a fortified citadel, substantial stone buildings and ancient temples. The site is sometimes called the “Golden City of the Thracians” because of its decorated roof tiles. Their red-and-black protective coatings include a mineral pigment that gives them a golden appearance. Some have survived for approximately 2,500 years.
Archaeologists have uncovered a mysterious 2,500-year-old bronze mechanism inside an ancient Thracian temple in Bulgaria. Featuring four unusual hooks, the object has left researchers questioning whether it held lamps or served another purpose. pic.twitter.com/uKxOKZLu5X
— Tom Marvolo Riddle (@tom_riddle2025) October 19, 2026
Archaeologists have also uncovered evidence of connections with ancient Greece. Large stone blocks and building techniques resemble those used in Greek construction. Imported pottery jars from Chios, Samos and Thasos suggest trade involving wine and olive oil. Such vessels played an important role in ancient Greek trade networks across the Mediterranean and Black Sea.
Ancient settlement may have been the first capital of the Odrysian Kingdom
Kisyov believes the settlement’s impressive architecture may indicate links to Teres I, a ruler associated with the founding of the Odrysian Kingdom. However, researchers have not established the city’s ancient name or confirmed its status as the kingdom’s first capital.
Excavations have also revealed two temples with similar designs. Researchers believe they may have belonged to a larger religious complex, possibly dedicated to different gods. Other ancient Thracian sites, including Perperikon in Bulgaria, also contain evidence of significant religious activity.
Karlovo Municipality reports evidence of an earlier sanctuary dating to the ninth century B.C., suggesting centuries of religious activity at the settlement. Further investigation may help researchers understand the bronze mechanism and its connection to the ancient settlement.
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