A recent discovery in the Papuk Mountains of eastern Croatia has unveiled a significant prehistoric fortress, ignited by the illegal sale of silver coins on the black market. These coins, dating back to the La Tène period, caught the eye of archaeologists, leading them to a remarkable settlement once hidden from view.
The coins were looted, prompting researchers to explore the origins of this lost site, known as Gradina. “It’s ironic that illicit activities led us to such an extraordinary find,” said Hrvoje Potrebica, a professor of prehistoric archaeology at the University of Zagreb. However, the loss of these artifacts also meant losing valuable context about the site’s history.
Excavation teams were astonished by their findings. Unlike many prehistoric fortresses built from wood and earth, which often decay over time, Gradina’s fortifications were crafted from durable stone. “These ramparts are incredibly well-preserved compared to what we usually see,” Potrebica noted, emphasizing the unique construction methods used.
The defenses included thick walls, some over 1.5 meters wide and reaching heights of 8 meters. Such architecture indicates a higher level of planning and social organization than typically observed in prehistoric Europe. This discovery suggests that the people of Gradina were part of a structured society, well-equipped to defend themselves.
The site spans roughly four hectares, hinting at a long-term settlement. Teams also found ceramic fragments nearby, adding to the evidence that this was more than just a military fortification.
In a time when many historical sites are lost to neglect or looting, Gradina stands as a testament to our past. It opens doors for learning about the sophistication of ancient societies. As this research continues, it has the potential to reshape our understanding of the region’s history and cultural development.
For more insights on archaeological discoveries, you can explore studies published by reputable sources like the Virovitičko-podravska County.

