Looking at the age of this stuff, I am astonished that I haven't seen it before.
As usual, I came by the story in a roundabout way. I was searching for free stone textures or pictures of stone to make into textures. I found a picture of a huge round ball, which was apparently found in Bosnia after an earthquake. I was struck by how similar they were to the south American balls that no one has ever explained.
Then I saw an article about the finding of a pyramid in Bosnia... and saw the pictures of the mountain looking very even and man made. There's even an Indiana Jones-like archaeologist in charge of the excavatation.
Anyway... dig around and see what you think....ah...I should have checked it out with wikipedia... they disbelieve the pyramids... have seen nothing about the balls,