The Stone Spheres of Zavidovići are located in the forest near Zavidovići, Bosnia and Herzegovina. These nearly perfectly spherical rock formations have sparked various theories about their origins and purpose.
The stone spheres were discovered in the early 20th century but gained significant attention starting in the 2000s. They are located approximately 100 km (62 miles) north of Sarajevo, in the “Stone Sphere Park” of Zavidovići.
Characteristics of the Bosnian Stone Spheres
- Size and Shape: The spheres vary in diameter, from 30 cm (11.8 inches) to over 3 meters (9.8 feet).
- Weight: The largest spheres weigh several tons.
- Material: The spheres are primarily composed of sandstone, with some featuring a mix of other minerals.
Theories About Their Origins
- Natural Geological Formation: They may be the result of a natural process called concretion, where mineral-rich water seeps into sedimentary rocks, solidifying into spherical shapes.
- Ancient Human Craftsmanship: Some theories suggest the spheres were carved by an ancient civilization for ceremonial or symbolic purposes.