Across different continents and cultures, remarkably similar stone spheres have been discovered — most famously in Costa Rica and Bosnia. While mainstream archaeology offers local explanations for each site, their shared characteristics continue to raise questions that remain unresolved.
In Costa Rica’s Diquís Delta, more than 300 stone spheres — known as Bolas de Piedra — were uncovered during banana plantation clearing in the 1930s. Most date between roughly 200 BC and 1500 AD and are commonly attributed to the now-extinct Diquís culture. Archaeologists generally interpret them as status symbols, territorial markers, or ceremonial objects, though no definitive explanation exists.
Thousands of kilometers away, large stone spheres have also been reported in Bosnia, particularly near Zavidovići. Some researchers, including Samir Osmanagić, argue these spheres are artificial and part of a wider prehistoric pattern. Critics counter that the Bosnian examples may be natural concretions, though even skeptics acknowledge their unusual shape, mass, and iron content.
by No_Money_9404