Massive Stone Sphere In BosniaAlthough the giant rock sphere looming out of the forest dirt and undergrowth appears man-made to the untrained eye, this monolith is likely not any specific sign of a lost civilization. Archaeologist Semir Osmanagich, known as the “Bosnian Indiana Jones”, says a 3 meter wide stone ball found in the forest of Visoko Valley in Bosnia was made by an unknown civilization that used to live in the area over 1000 years ago. There are many examples of spherical concretions like the one found in Bosnia from around the world.Outside the town of Zavidovici, a controversial archaeologist, Semir Osmanagic, has found a giant stone sphere. It’s impressively large—four to five feet in diameter, and has high iron content. Only part of it was peaking out of the ground, but Osmanagic and colleagues revealed more of it.This could be, he told reporters, the oldest stone sphere made by humans. “Dr Osmanagic believes the sphere proves the existence of an advanced lost civilisation dating back more than 1,500 years ago.